Implement the roff(7) .rr (remove register) request.

As reported by sthen@, the perl-5.18 pod2man(1) preamble
thinks cool kids use that in manuals.  I hope *you* know better.

1 files changed, 10 insertions, 6 deletions

diff --git a/roff.7 b/roff.7
index d9e0b999..5009c8d0 100644
--- a/roff.7
+++ b/roff.7
@@ -898,12 +898,6 @@ This line-scoped request is currently ignored.
 .Ss \&nh
 Turn off automatic hyphenation mode.
 This line-scoped request is currently ignored.
-.Ss \&rm
-Remove a request, macro or string.
-This request is intended to have one argument,
-the name of the request, macro or string to be undefined.
-Currently, it is ignored including its arguments,
-and the number of arguments is not checked.
 .Ss \&nr
 Define or change a register.
 A register is an arbitrary string value that defines some sort of state,
@@ -949,6 +943,16 @@ Change point size.
 This line-scoped request is intended to take one numerical argument.
 Currently, it is ignored including its arguments,
 and the number of arguments is not checked.
+.Ss \&rm
+Remove a request, macro or string.
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Cm \&rm Ar name
+.Ss \&rr
+Remove a register.
+Its syntax is as follows:
+.Pp
+.D1 Pf \. Cm \&rr Ar name
 .Ss \&so
 Include a source file.
 Its syntax is as follows: