Style message about legacy man(7) date format in mdoc(7) documents

and operating system dependent messages about missing or unexpected
Mdocdate; inspired by mdoclint(1).

59 files changed, 59 insertions, 0 deletions

diff --git a/regress/mdoc/Oo/punct.out_lint b/regress/mdoc/Oo/punct.out_lint
index fa02f065..f2bdac03 100644
--- a/regress/mdoc/Oo/punct.out_lint
+++ b/regress/mdoc/Oo/punct.out_lint
@@ -1 +1,2 @@
+mandoc: punct.in:1:5: STYLE: Mdocdate missing: Dd June
 mandoc: punct.in:26:6: STYLE: no blank before trailing delimiter: Oo a.
diff --git a/regress/mdoc/Op/break.out_lint b/regress/mdoc/Op/break.out_lint
index 49c0fd12..9ac3ad69 100644
--- a/regress/mdoc/Op/break.out_lint
+++ b/regress/mdoc/Op/break.out_lint
@@ -1,3 +1,4 @@
 mandoc: break.in:9:2: WARNING: blocks badly nested: Op breaks Do
 mandoc: break.in:15:7: WARNING: blocks badly nested: Op breaks Do
 mandoc: break.in:15:2: WARNING: blocks badly nested: Op breaks Do
+mandoc: break.in:1:5: STYLE: Mdocdate missing: Dd July
diff --git a/regress/mdoc/Op/broken.out_lint b/regress/mdoc/Op/broken.out_lint
index f82e1bda..b33fb668 100644
--- a/regress/mdoc/Op/broken.out_lint
+++ b/regress/mdoc/Op/broken.out_lint
@@ -1,2 +1,3 @@
 mandoc: broken.in:10:17: WARNING: blocks badly nested: Do breaks Op
 mandoc: broken.in:15:15: WARNING: blocks badly nested: Do breaks Op
+mandoc: broken.in:1:5: STYLE: Mdocdate missing: Dd July
diff --git a/regress/mdoc/Op/punct.out_lint b/regress/mdoc/Op/punct.out_lint
index fff31aea..e4c3b3f9 100644
--- a/regress/mdoc/Op/punct.out_lint
+++ b/regress/mdoc/Op/punct.out_lint
@@ -1 +1,2 @@
+mandoc: punct.in:1:5: STYLE: Mdocdate missing: Dd June
 mandoc: punct.in:34:6: STYLE: no blank before trailing delimiter: Op a.
diff --git a/regress/mdoc/Pa/punct.out_lint b/regress/mdoc/Pa/punct.out_lint
index 5c50094f..8fa38b4d 100644
--- a/regress/mdoc/Pa/punct.out_lint
+++ b/regress/mdoc/Pa/punct.out_lint
@@ -1 +1,2 @@
+mandoc: punct.in:1:5: STYLE: Mdocdate missing: Dd June
 mandoc: punct.in:45:6: STYLE: no blank before trailing delimiter: Pa a.
diff --git a/regress/mdoc/Pf/spacing.out_lint b/regress/mdoc/Pf/spacing.out_lint
index 8444f0dd..ccc98067 100644
--- a/regress/mdoc/Pf/spacing.out_lint
+++ b/regress/mdoc/Pf/spacing.out_lint
@@ -1,3 +1,4 @@
 mandoc: spacing.in:24:2: WARNING: nothing follows prefix: Pf prefixed
 mandoc: spacing.in:27:9: WARNING: nothing follows prefix: Pf .
 mandoc: spacing.in:31:9: WARNING: nothing follows prefix: Pf at eol
+mandoc: spacing.in:1:5: STYLE: Mdocdate missing: Dd November
diff --git a/regress/mdoc/Pp/arg.out_lint b/regress/mdoc/Pp/arg.out_lint
index 048f13fa..135e39f6 100644
--- a/regress/mdoc/Pp/arg.out_lint
+++ b/regress/mdoc/Pp/arg.out_lint
@@ -1,3 +1,4 @@
 mandoc: arg.in:11:5: ERROR: skipping all arguments: br drop this
 mandoc: arg.in:13:8: ERROR: skipping excess arguments: sp ... drop this
+mandoc: arg.in:1:5: STYLE: Mdocdate missing: Dd February
 mandoc: arg.in:9:2: ERROR: skipping all arguments: Pp drop
diff --git a/regress/mdoc/Qq/empty.out_lint b/regress/mdoc/Qq/empty.out_lint
index 4d0f7932..1e1ce1a8 100644
--- a/regress/mdoc/Qq/empty.out_lint
+++ b/regress/mdoc/Qq/empty.out_lint
@@ -1,2 +1,3 @@
+mandoc: empty.in:1:5: STYLE: Mdocdate missing: Dd June
 mandoc: empty.in:11:18: STYLE: no blank before trailing delimiter: Qq user@host)
 mandoc: empty.in:14:13: STYLE: no blank before trailing delimiter: Qo full)
diff --git a/regress/mdoc/Rs/allch.out_lint b/regress/mdoc/Rs/allch.out_lint
index d8f8988f..08c3b9a1 100644
--- a/regress/mdoc/Rs/allch.out_lint
+++ b/regress/mdoc/Rs/allch.out_lint
@@ -1,3 +1,4 @@
+mandoc: allch.in:1:5: STYLE: Mdocdate missing: Dd July
 mandoc: allch.in:14:1: WARNING: invalid content in Rs block: text
 mandoc: allch.in:19:2: WARNING: invalid content in Rs block: Em
 mandoc: allch.in:20:1: WARNING: invalid content in Rs block: text
diff --git a/regress/mdoc/Rs/args.out_lint b/regress/mdoc/Rs/args.out_lint
index f5bccd15..796b893b 100644
--- a/regress/mdoc/Rs/args.out_lint
+++ b/regress/mdoc/Rs/args.out_lint
@@ -1,2 +1,3 @@
 mandoc: args.in:9:5: ERROR: skipping all arguments: Rs bogus
 mandoc: args.in:14:5: ERROR: skipping all arguments: Rs Sy
+mandoc: args.in:1:5: STYLE: Mdocdate missing: Dd February
diff --git a/regress/mdoc/Rs/empty.out_lint b/regress/mdoc/Rs/empty.out_lint
index afaf9a10..a83fa520 100644
--- a/regress/mdoc/Rs/empty.out_lint
+++ b/regress/mdoc/Rs/empty.out_lint
@@ -1,2 +1,3 @@
+mandoc: empty.in:1:5: STYLE: Mdocdate missing: Dd February
 mandoc: empty.in:9:2: WARNING: empty reference block: Rs
 mandoc: empty.in:14:2: WARNING: empty reference block: Rs
diff --git a/regress/mdoc/Rv/noname.out_lint b/regress/mdoc/Rv/noname.out_lint
index a0eec12a..13baf647 100644
--- a/regress/mdoc/Rv/noname.out_lint
+++ b/regress/mdoc/Rv/noname.out_lint
@@ -1 +1,2 @@
+mandoc: noname.in:1:5: STYLE: Mdocdate missing: Dd July
 mandoc: noname.in:5:2: ERROR: missing manual name, using "": Nm
diff --git a/regress/mdoc/Rv/nostd.out_lint b/regress/mdoc/Rv/nostd.out_lint
index c58122e0..16acaba6 100644
--- a/regress/mdoc/Rv/nostd.out_lint
+++ b/regress/mdoc/Rv/nostd.out_lint
@@ -1,3 +1,4 @@
+mandoc: nostd.in:1:5: STYLE: Mdocdate missing: Dd July
 mandoc: nostd.in:9:2: WARNING: missing -std argument, adding it: Rv
 mandoc: nostd.in:12:2: WARNING: missing -std argument, adding it: Rv
 mandoc: nostd.in:15:2: WARNING: missing -std argument, adding it: Rv
diff --git a/regress/mdoc/Sh/badNAME.out_lint b/regress/mdoc/Sh/badNAME.out_lint
index 9fbbf668..9f008a18 100644
--- a/regress/mdoc/Sh/badNAME.out_lint
+++ b/regress/mdoc/Sh/badNAME.out_lint
@@ -1,2 +1,3 @@
+mandoc: badNAME.in:1:5: STYLE: Mdocdate missing: Dd July
 mandoc: badNAME.in:5:2: WARNING: bad NAME section content: Em
 mandoc: badNAME.in:4:2: WARNING: NAME section without description
diff --git a/regress/mdoc/Sh/before.out_lint b/regress/mdoc/Sh/before.out_lint
index 314acb29..7cfe763e 100644
--- a/regress/mdoc/Sh/before.out_lint
+++ b/regress/mdoc/Sh/before.out_lint
@@ -1 +1,2 @@
+mandoc: before.in:1:5: STYLE: Mdocdate missing: Dd July
 mandoc: before.in:4:1: WARNING: content before first section header: text
diff --git a/regress/mdoc/Sh/empty.out_lint b/regress/mdoc/Sh/empty.out_lint
index 28d05c97..1672d581 100644
--- a/regress/mdoc/Sh/empty.out_lint
+++ b/regress/mdoc/Sh/empty.out_lint
@@ -1 +1,2 @@
 mandoc: empty.in:9:2: ERROR: inserting missing end of block: Sh breaks Xo
+mandoc: empty.in:1:5: STYLE: Mdocdate missing: Dd November
diff --git a/regress/mdoc/Sh/emptyNAME.out_lint b/regress/mdoc/Sh/emptyNAME.out_lint
index c6da49bb..45804744 100644
--- a/regress/mdoc/Sh/emptyNAME.out_lint
+++ b/regress/mdoc/Sh/emptyNAME.out_lint
@@ -1,2 +1,3 @@
+mandoc: emptyNAME.in:1:5: STYLE: Mdocdate missing: Dd July
 mandoc: emptyNAME.in:4:2: WARNING: NAME section without Nm before Nd
 mandoc: emptyNAME.in:4:2: WARNING: NAME section without description
diff --git a/regress/mdoc/Sh/first.out_lint b/regress/mdoc/Sh/first.out_lint
index df39e0d0..c19ec77d 100644
--- a/regress/mdoc/Sh/first.out_lint
+++ b/regress/mdoc/Sh/first.out_lint
@@ -1 +1,2 @@
+mandoc: first.in:1:5: STYLE: Mdocdate missing: Dd July
 mandoc: first.in:4:2: WARNING: first section is not "NAME": Sh DESCRIPTION
diff --git a/regress/mdoc/Sh/nohead.out_lint b/regress/mdoc/Sh/nohead.out_lint
index b93f65e6..78e046c6 100644
--- a/regress/mdoc/Sh/nohead.out_lint
+++ b/regress/mdoc/Sh/nohead.out_lint
@@ -1,2 +1,3 @@
 mandoc: nohead.in:9:2: WARNING: skipping empty macro: Sh
 mandoc: nohead.in:11:2: WARNING: skipping empty macro: Ss
+mandoc: nohead.in:1:5: STYLE: Mdocdate missing: Dd February
diff --git a/regress/mdoc/Sh/order.out_lint b/regress/mdoc/Sh/order.out_lint
index 67aa5db8..52f42595 100644
--- a/regress/mdoc/Sh/order.out_lint
+++ b/regress/mdoc/Sh/order.out_lint
@@ -1,3 +1,4 @@
+mandoc: order.in:1:5: STYLE: Mdocdate missing: Dd July
 mandoc: order.in:9:2: WARNING: sections out of conventional order: Sh SYNOPSIS
 mandoc: order.in:10:2: WARNING: duplicate section title: Sh SYNOPSIS
 mandoc: order.in:11:2: WARNING: unexpected section: Sh ERRORS for 2, 3, 4, 9 only
diff --git a/regress/mdoc/Sh/orderNAME.out_lint b/regress/mdoc/Sh/orderNAME.out_lint
index 0049023d..5b3a88cd 100644
--- a/regress/mdoc/Sh/orderNAME.out_lint
+++ b/regress/mdoc/Sh/orderNAME.out_lint
@@ -1,2 +1,3 @@
+mandoc: orderNAME.in:1:5: STYLE: Mdocdate missing: Dd January
 mandoc: orderNAME.in:5:2: WARNING: description not at the end of NAME
 mandoc: orderNAME.in:4:2: WARNING: NAME section without Nm before Nd
diff --git a/regress/mdoc/Sh/parbefore.out_lint b/regress/mdoc/Sh/parbefore.out_lint
index fcb61942..86e6c69d 100644
--- a/regress/mdoc/Sh/parbefore.out_lint
+++ b/regress/mdoc/Sh/parbefore.out_lint
@@ -1 +1,2 @@
+mandoc: parbefore.in:1:5: STYLE: Mdocdate missing: Dd April
 mandoc: parbefore.in:4:2: WARNING: skipping paragraph macro: Pp before Sh
diff --git a/regress/mdoc/Sh/parborder.out_lint b/regress/mdoc/Sh/parborder.out_lint
index cd6c5c23..60404cab 100644
--- a/regress/mdoc/Sh/parborder.out_lint
+++ b/regress/mdoc/Sh/parborder.out_lint
@@ -1,3 +1,4 @@
+mandoc: parborder.in:1:5: STYLE: Mdocdate missing: Dd April
 mandoc: parborder.in:8:2: WARNING: skipping paragraph macro: Pp after Sh
 mandoc: parborder.in:10:2: WARNING: skipping paragraph macro: Pp at the end of Sh
 mandoc: parborder.in:12:2: WARNING: skipping paragraph macro: Pp after Sh
diff --git a/regress/mdoc/Sh/punctNAME.out_lint b/regress/mdoc/Sh/punctNAME.out_lint
index 9ed95e4e..36ea06c2 100644
--- a/regress/mdoc/Sh/punctNAME.out_lint
+++ b/regress/mdoc/Sh/punctNAME.out_lint
@@ -1,3 +1,4 @@
+mandoc: punctNAME.in:1:5: STYLE: Mdocdate missing: Dd January
 mandoc: punctNAME.in:6:2: WARNING: missing comma before name: Nm second_name
 mandoc: punctNAME.in:6:17: WARNING: bad NAME section content: text
 mandoc: punctNAME.in:7:2: WARNING: missing comma before name: Nm third_name
diff --git a/regress/mdoc/Sh/subbefore.out_lint b/regress/mdoc/Sh/subbefore.out_lint
index fd497d25..7200899f 100644
--- a/regress/mdoc/Sh/subbefore.out_lint
+++ b/regress/mdoc/Sh/subbefore.out_lint
@@ -1 +1,2 @@
+mandoc: subbefore.in:1:5: STYLE: Mdocdate missing: Dd July
 mandoc: subbefore.in:4:2: WARNING: content before first section header: Ss
diff --git a/regress/mdoc/Sm/badarg.out_lint b/regress/mdoc/Sm/badarg.out_lint
index 54644f34..e355625c 100644
--- a/regress/mdoc/Sm/badarg.out_lint
+++ b/regress/mdoc/Sm/badarg.out_lint
@@ -1,2 +1,3 @@
+mandoc: badarg.in:1:5: STYLE: Mdocdate missing: Dd July
 mandoc: badarg.in:11:5: WARNING: invalid Boolean argument: Sm bad
 mandoc: badarg.in:13:5: WARNING: invalid Boolean argument: Sm bad
diff --git a/regress/mdoc/Sm/twoarg.out_lint b/regress/mdoc/Sm/twoarg.out_lint
index 581a5500..ff639a7a 100644
--- a/regress/mdoc/Sm/twoarg.out_lint
+++ b/regress/mdoc/Sm/twoarg.out_lint
@@ -1 +1,2 @@
+mandoc: twoarg.in:1:5: STYLE: Mdocdate missing: Dd November
 mandoc: twoarg.in:16:5: WARNING: invalid Boolean argument: Sm bad
diff --git a/regress/mdoc/Sq/empty.out_lint b/regress/mdoc/Sq/empty.out_lint
index 450c70b9..27efbfd8 100644
--- a/regress/mdoc/Sq/empty.out_lint
+++ b/regress/mdoc/Sq/empty.out_lint
@@ -1,2 +1,3 @@
+mandoc: empty.in:1:5: STYLE: Mdocdate missing: Dd June
 mandoc: empty.in:11:18: STYLE: no blank before trailing delimiter: Sq user@host)
 mandoc: empty.in:14:13: STYLE: no blank before trailing delimiter: So full)
diff --git a/regress/mdoc/St/badargs.out_lint b/regress/mdoc/St/badargs.out_lint
index ae74aa1a..02904eac 100644
--- a/regress/mdoc/St/badargs.out_lint
+++ b/regress/mdoc/St/badargs.out_lint
@@ -1,2 +1,3 @@
 mandoc: badargs.in:15:2: WARNING: skipping empty macro: St
+mandoc: badargs.in:1:5: STYLE: Mdocdate missing: Dd June
 mandoc: badargs.in:12:5: ERROR: unknown standard specifier: St -murks
diff --git a/regress/mdoc/St/call.out_lint b/regress/mdoc/St/call.out_lint
index 6bf60a71..1a51ebc8 100644
--- a/regress/mdoc/St/call.out_lint
+++ b/regress/mdoc/St/call.out_lint
@@ -1 +1,2 @@
 mandoc: call.in:9:2: WARNING: skipping empty macro: St
+mandoc: call.in:1:5: STYLE: Mdocdate missing: Dd February
diff --git a/regress/mdoc/Sx/noarg.out_lint b/regress/mdoc/Sx/noarg.out_lint
index 3bdfa389..9c420488 100644
--- a/regress/mdoc/Sx/noarg.out_lint
+++ b/regress/mdoc/Sx/noarg.out_lint
@@ -1 +1,2 @@
 mandoc: noarg.in:11:2: WARNING: skipping empty macro: Sx
+mandoc: noarg.in:1:5: STYLE: Mdocdate missing: Dd January
diff --git a/regress/mdoc/Sy/noarg.out_lint b/regress/mdoc/Sy/noarg.out_lint
index de7bf597..1fd12f57 100644
--- a/regress/mdoc/Sy/noarg.out_lint
+++ b/regress/mdoc/Sy/noarg.out_lint
@@ -1 +1,2 @@
 mandoc: noarg.in:11:2: WARNING: skipping empty macro: Sy
+mandoc: noarg.in:1:5: STYLE: Mdocdate missing: Dd January
diff --git a/regress/mdoc/Sy/punct.out_lint b/regress/mdoc/Sy/punct.out_lint
index af0021a1..2aa1fe34 100644
--- a/regress/mdoc/Sy/punct.out_lint
+++ b/regress/mdoc/Sy/punct.out_lint
@@ -23,4 +23,5 @@ mandoc: punct.in:71:7: WARNING: skipping empty macro: Sy
 mandoc: punct.in:74:7: WARNING: skipping empty macro: Sy
 mandoc: punct.in:75:7: WARNING: skipping empty macro: Sy
 mandoc: punct.in:83:2: WARNING: skipping empty macro: Sy
+mandoc: punct.in:1:5: STYLE: Mdocdate missing: Dd June
 mandoc: punct.in:86:6: STYLE: no blank before trailing delimiter: Sy a.
diff --git a/regress/mdoc/Tn/noarg.out_lint b/regress/mdoc/Tn/noarg.out_lint
index 340a3502..a2980eca 100644
--- a/regress/mdoc/Tn/noarg.out_lint
+++ b/regress/mdoc/Tn/noarg.out_lint
@@ -1,2 +1,3 @@
 mandoc: noarg.in:11:2: WARNING: skipping empty macro: Tn
+mandoc: noarg.in:1:5: STYLE: Mdocdate missing: Dd January
 mandoc: noarg.in:9:2: STYLE: useless macro: Tn
diff --git a/regress/mdoc/Ud/arg.out_lint b/regress/mdoc/Ud/arg.out_lint
index eac1710f..cb1e4188 100644
--- a/regress/mdoc/Ud/arg.out_lint
+++ b/regress/mdoc/Ud/arg.out_lint
@@ -1,3 +1,4 @@
+mandoc: arg.in:1:5: STYLE: Mdocdate missing: Dd January
 mandoc: arg.in:9:2: STYLE: useless macro: Ud
 mandoc: arg.in:11:2: STYLE: useless macro: Bt
 mandoc: arg.in:15:2: STYLE: useless macro: Ud
diff --git a/regress/mdoc/Ux/punct.out_lint b/regress/mdoc/Ux/punct.out_lint
index 0c7c8622..7037ae94 100644
--- a/regress/mdoc/Ux/punct.out_lint
+++ b/regress/mdoc/Ux/punct.out_lint
@@ -1,3 +1,4 @@
+mandoc: punct.in:1:5: STYLE: Mdocdate missing: Dd June
 mandoc: punct.in:10:9: STYLE: no blank before trailing delimiter: Bsx 5.1,
 mandoc: punct.in:11:10: STYLE: no blank before trailing delimiter: Dx 4.8.0,
 mandoc: punct.in:12:9: STYLE: no blank before trailing delimiter: Fx 11.0,
diff --git a/regress/mdoc/Va/noarg.out_lint b/regress/mdoc/Va/noarg.out_lint
index 1541c742..b8334764 100644
--- a/regress/mdoc/Va/noarg.out_lint
+++ b/regress/mdoc/Va/noarg.out_lint
@@ -1,2 +1,3 @@
 mandoc: noarg.in:12:2: WARNING: skipping empty macro: Va
+mandoc: noarg.in:1:5: STYLE: Mdocdate missing: Dd June
 mandoc: noarg.in:10:10: STYLE: no blank before trailing delimiter: Va errno.
diff --git a/regress/mdoc/Vt/noarg.out_lint b/regress/mdoc/Vt/noarg.out_lint
index 3774062e..64f3a0c5 100644
--- a/regress/mdoc/Vt/noarg.out_lint
+++ b/regress/mdoc/Vt/noarg.out_lint
@@ -1,2 +1,3 @@
 mandoc: noarg.in:11:2: WARNING: skipping empty macro: Vt
+mandoc: noarg.in:1:5: STYLE: Mdocdate missing: Dd June
 mandoc: noarg.in:9:15: STYLE: no blank before trailing delimiter: Vt ... int.
diff --git a/regress/mdoc/Xr/args.out_lint b/regress/mdoc/Xr/args.out_lint
index 672b87bb..c88a40ac 100644
--- a/regress/mdoc/Xr/args.out_lint
+++ b/regress/mdoc/Xr/args.out_lint
@@ -1,5 +1,6 @@
 mandoc: args.in:28:2: WARNING: skipping empty macro: Xr
 mandoc: args.in:30:2: WARNING: skipping empty macro: Xr
+mandoc: args.in:1:5: STYLE: Mdocdate missing: Dd June
 mandoc: args.in:22:13: STYLE: no blank before trailing delimiter: Xr ... 1)
 mandoc: args.in:24:2: WARNING: missing section argument: Xr echo
 mandoc: args.in:26:2: WARNING: missing section argument: Xr echo,
diff --git a/regress/mdoc/blank/comment.out_lint b/regress/mdoc/blank/comment.out_lint
index f5599f67..8234dd2b 100644
--- a/regress/mdoc/blank/comment.out_lint
+++ b/regress/mdoc/blank/comment.out_lint
@@ -1 +1,2 @@
 mandoc: comment.in:11:3: WARNING: bad comment style
+mandoc: comment.in:1:5: STYLE: Mdocdate missing: Dd February
diff --git a/regress/mdoc/blank/line.out_lint b/regress/mdoc/blank/line.out_lint
index 6e439442..14678b54 100644
--- a/regress/mdoc/blank/line.out_lint
+++ b/regress/mdoc/blank/line.out_lint
@@ -7,6 +7,7 @@ mandoc: line.in:60:1: WARNING: blank line in fill mode, using .sp
 mandoc: line.in:62:1: WARNING: blank line in fill mode, using .sp
 mandoc: line.in:65:1: WARNING: blank line in fill mode, using .sp
 mandoc: line.in:66:1: WARNING: blank line in fill mode, using .sp
+mandoc: line.in:1:5: STYLE: Mdocdate missing: Dd February
 mandoc: line.in:18:2: WARNING: skipping paragraph macro: br after br
 mandoc: line.in:20:2: WARNING: skipping paragraph macro: br before Pp
 mandoc: line.in:24:2: WARNING: skipping paragraph macro: br after Pp
diff --git a/regress/mdoc/blank/list.out_lint b/regress/mdoc/blank/list.out_lint
index a90d91a4..084d20fe 100644
--- a/regress/mdoc/blank/list.out_lint
+++ b/regress/mdoc/blank/list.out_lint
@@ -1,3 +1,4 @@
+mandoc: list.in:1:5: STYLE: Mdocdate missing: Dd July
 mandoc: list.in:19:2: WARNING: skipping paragraph macro: Pp before It
 mandoc: list.in:22:2: WARNING: moving paragraph macro out of list: Pp
 mandoc: list.in:34:2: WARNING: moving paragraph macro out of list: Pp
diff --git a/regress/mdoc/break/brokenbreaker.out_lint b/regress/mdoc/break/brokenbreaker.out_lint
index 16e7a2ba..a52459a1 100644
--- a/regress/mdoc/break/brokenbreaker.out_lint
+++ b/regress/mdoc/break/brokenbreaker.out_lint
@@ -1,3 +1,4 @@
 mandoc: brokenbreaker.in:10:2: WARNING: blocks badly nested: Po breaks Ao
 mandoc: brokenbreaker.in:12:2: ERROR: skipping end of block that is not open: Pc
 mandoc: brokenbreaker.in:13:2: WARNING: blocks badly nested: Ao breaks Bo
+mandoc: brokenbreaker.in:1:5: STYLE: Mdocdate missing: Dd December
diff --git a/regress/mdoc/break/notopen.out_lint b/regress/mdoc/break/notopen.out_lint
index e70b2f6f..6faaf818 100644
--- a/regress/mdoc/break/notopen.out_lint
+++ b/regress/mdoc/break/notopen.out_lint
@@ -1 +1,2 @@
 mandoc: notopen.in:10:2: ERROR: skipping end of block that is not open: Pc
+mandoc: notopen.in:1:5: STYLE: Mdocdate missing: Dd August
diff --git a/regress/mdoc/break/tail.out_lint b/regress/mdoc/break/tail.out_lint
index d6449913..1ab147d9 100644
--- a/regress/mdoc/break/tail.out_lint
+++ b/regress/mdoc/break/tail.out_lint
@@ -3,3 +3,4 @@ mandoc: tail.in:15:2: WARNING: blocks badly nested: Ao breaks Bo
 mandoc: tail.in:20:2: WARNING: blocks badly nested: Aq breaks Bo
 mandoc: tail.in:22:2: WARNING: blocks badly nested: Aq breaks Bo
 mandoc: tail.in:46:2: WARNING: blocks badly nested: Bro breaks Po
+mandoc: tail.in:1:5: STYLE: Mdocdate missing: Dd February
diff --git a/regress/mdoc/break/twice.out_lint b/regress/mdoc/break/twice.out_lint
index 150800e9..01e818c2 100644
--- a/regress/mdoc/break/twice.out_lint
+++ b/regress/mdoc/break/twice.out_lint
@@ -8,4 +8,5 @@ mandoc: twice.in:32:11: WARNING: blocks badly nested: Bo breaks Aq
 mandoc: twice.in:32:17: WARNING: blocks badly nested: Bo breaks Aq
 mandoc: twice.in:36:8: WARNING: blocks badly nested: Bq breaks Po
 mandoc: twice.in:36:2: WARNING: blocks badly nested: Aq breaks Po
+mandoc: twice.in:1:5: STYLE: Mdocdate missing: Dd February
 mandoc: twice.in:36:2: WARNING: moving content out of list: Aq
diff --git a/regress/mdoc/break/two.out_lint b/regress/mdoc/break/two.out_lint
index 79346fe3..eb67d6c0 100644
--- a/regress/mdoc/break/two.out_lint
+++ b/regress/mdoc/break/two.out_lint
@@ -6,3 +6,4 @@ mandoc: two.in:29:2: WARNING: blocks badly nested: Aq breaks Bro
 mandoc: two.in:30:2: WARNING: blocks badly nested: Bo breaks Bro
 mandoc: two.in:36:2: WARNING: blocks badly nested: Ao breaks Bo
 mandoc: two.in:41:2: WARNING: blocks badly nested: Aq breaks Bo
+mandoc: two.in:1:5: STYLE: Mdocdate missing: Dd February
diff --git a/regress/roff/args/mdoc.out_lint b/regress/roff/args/mdoc.out_lint
index a622c6c7..a9b014fc 100644
--- a/regress/roff/args/mdoc.out_lint
+++ b/regress/roff/args/mdoc.out_lint
@@ -11,3 +11,4 @@ mandoc: mdoc.in:107:14: WARNING: unterminated quoted argument
 mandoc: mdoc.in:111:11: WARNING: unterminated quoted argument
 mandoc: mdoc.in:112:15: WARNING: unterminated quoted argument
 mandoc: mdoc.in:120:1: ERROR: escaped character not allowed in a name: Fl\(
+mandoc: mdoc.in:1:5: STYLE: Mdocdate missing: Dd November
diff --git a/regress/roff/de/escname.out_lint b/regress/roff/de/escname.out_lint
index f0fd2109..eb454210 100644
--- a/regress/roff/de/escname.out_lint
+++ b/regress/roff/de/escname.out_lint
@@ -6,3 +6,4 @@ mandoc: escname.in:37:5: ERROR: skipping excess arguments: .de ... excess argume
 mandoc: escname.in:40:1: ERROR: escaped character not allowed in a name: witharg\(
 mandoc: escname.in:42:1: ERROR: escaped character not allowed in a name: de\e
 mandoc: escname.in:42:2: WARNING: skipping empty request: de
+mandoc: escname.in:1:5: STYLE: Mdocdate missing: Dd June
diff --git a/regress/roff/de/indir.out_lint b/regress/roff/de/indir.out_lint
index 96f42d1d..5cb1bd84 100644
--- a/regress/roff/de/indir.out_lint
+++ b/regress/roff/de/indir.out_lint
@@ -2,3 +2,4 @@ mandoc: indir.in:18:11: WARNING: undefined string, using "": myie
 mandoc: indir.in:25:6: WARNING: undefined string, using "": myim
 mandoc: indir.in:25:2: WARNING: skipping empty request: dei
 mandoc: indir.in:29:2: WARNING: skipping empty request: dei
+mandoc: indir.in:1:5: STYLE: Mdocdate missing: Dd July
diff --git a/regress/roff/de/infinite.out_lint b/regress/roff/de/infinite.out_lint
index 7cea727c..59a19713 100644
--- a/regress/roff/de/infinite.out_lint
+++ b/regress/roff/de/infinite.out_lint
@@ -1,2 +1,3 @@
 mandoc: infinite.in:13:5: ERROR: input stack limit exceeded, infinite loop?
 mandoc: infinite.in:19:5: ERROR: input stack limit exceeded, infinite loop?
+mandoc: infinite.in:1:5: STYLE: Mdocdate missing: Dd March
diff --git a/regress/roff/esc/B.out_lint b/regress/roff/esc/B.out_lint
index 6159b1c5..f7ddc99f 100644
--- a/regress/roff/esc/B.out_lint
+++ b/regress/roff/esc/B.out_lint
@@ -1 +1,2 @@
 mandoc: B.in:36:23: WARNING: invalid escape sequence: \B'1+1
+mandoc: B.in:1:5: STYLE: Mdocdate missing: Dd July
diff --git a/regress/roff/esc/h.out_lint b/regress/roff/esc/h.out_lint
index 6d591e38..6e2eb342 100644
--- a/regress/roff/esc/h.out_lint
+++ b/regress/roff/esc/h.out_lint
@@ -1 +1,2 @@
 mandoc: h.in:18:21: WARNING: invalid escape sequence: \h-
+mandoc: h.in:1:5: STYLE: Mdocdate missing: Dd May
diff --git a/regress/roff/esc/ignore.out_lint b/regress/roff/esc/ignore.out_lint
index c163d60d..688685f5 100644
--- a/regress/roff/esc/ignore.out_lint
+++ b/regress/roff/esc/ignore.out_lint
@@ -1 +1,2 @@
 mandoc: ignore.in:14:60: WARNING: invalid escape sequence: \s-
+mandoc: ignore.in:1:5: STYLE: Mdocdate missing: Dd January
diff --git a/regress/roff/esc/w.out_lint b/regress/roff/esc/w.out_lint
index a1b91722..1dc300e0 100644
--- a/regress/roff/esc/w.out_lint
+++ b/regress/roff/esc/w.out_lint
@@ -1 +1,2 @@
 mandoc: w.in:16:15: WARNING: invalid escape sequence: \w'foo
+mandoc: w.in:1:5: STYLE: Mdocdate missing: Dd April
diff --git a/regress/roff/ft/badargs-mdoc.out_lint b/regress/roff/ft/badargs-mdoc.out_lint
index d5f526e6..d3da07f6 100644
--- a/regress/roff/ft/badargs-mdoc.out_lint
+++ b/regress/roff/ft/badargs-mdoc.out_lint
@@ -1,2 +1,3 @@
 mandoc: badargs-mdoc.in:13:7: ERROR: skipping excess arguments: ft ... bogus
+mandoc: badargs-mdoc.in:1:5: STYLE: Mdocdate missing: Dd May
 mandoc: badargs-mdoc.in:11:2: WARNING: unknown font, skipping request: ft foo
diff --git a/regress/roff/ig/basic.out_lint b/regress/roff/ig/basic.out_lint
index 7c068e87..026e3726 100644
--- a/regress/roff/ig/basic.out_lint
+++ b/regress/roff/ig/basic.out_lint
@@ -1,3 +1,4 @@
 mandoc: basic.in:19:5: ERROR: skipping excess arguments: .ig ... excess
 mandoc: basic.in:24:2: ERROR: skipping end of block that is not open: ..
 mandoc: basic.in:26:2: ERROR: appending missing end of block: ig
+mandoc: basic.in:1:5: STYLE: Mdocdate missing: Dd July
diff --git a/regress/roff/it/badarg.out_lint b/regress/roff/it/badarg.out_lint
index ac526c6b..c553000b 100644
--- a/regress/roff/it/badarg.out_lint
+++ b/regress/roff/it/badarg.out_lint
@@ -1,2 +1,3 @@
 mandoc: badarg.in:12:2: ERROR: skipping request without numeric argument: it mytrap
 mandoc: badarg.in:15:2: ERROR: skipping request without numeric argument: it
+mandoc: badarg.in:1:5: STYLE: Mdocdate missing: Dd July
diff --git a/regress/roff/string/name.out_lint b/regress/roff/string/name.out_lint
index c4c757f5..1468df4b 100644
--- a/regress/roff/string/name.out_lint
+++ b/regress/roff/string/name.out_lint
@@ -15,3 +15,4 @@ mandoc: name.in:33:6: WARNING: undefined string, using "": ble
 mandoc: name.in:33:5: WARNING: whitespace at end of input line
 mandoc: name.in:35:5: WARNING: undefined string, using "": bl
 mandoc: name.in:35:4: WARNING: whitespace at end of input line
+mandoc: name.in:1:5: STYLE: Mdocdate missing: Dd January