Normalise SYNOPSIS behaviour after I gave up on following groff's

inconsistent behaviour.  In short:

       Some macros are displayed differently in the SYNOPSIS
       section, particularly Nm, Cd, Fd, Fn, Fo, In, Vt, and Ft.
       All of these macros are output on their own line.  If two
       such dissimilar macros are pair-wise invoked (except for Ft
       before Fo or Fn), they are separated by a vertical space,
       unless in the case of Fo, Fn, and Ft, which are always
       separated by vertical space.

Behaviour ok Jason McIntyre, ingo@.  Fallout will be treated
case-by-case.

I had to clear out some regressions that were testing against groff's
stranger behaviours: these will now break, as we don't care about such
invocations.

Also removed the newline for `Cd' invocation in a non-SYNOPSIS context.

1 files changed, 0 insertions, 24 deletions

diff --git a/regress/mdoc/In/in.in b/regress/mdoc/In/in.in
deleted file mode 100644
index 28831768..00000000
--- a/regress/mdoc/In/in.in
+++ /dev/null
@@ -1,24 +0,0 @@
-.\" THIS WILL PUKE HORRIBLY ON OLD GROFF, WHICH HAS COMPLETELY
-.\" DIFFERENT ("BAD") BEHAVIOUR.
-.Dd $Mdocdate$
-.Dt FOO 1
-.Os
-.Sh NAME
-.Nm foo
-.Nd bar
-.Sh SYNOPSIS
-1
-.In 2 3
-6
-.In 2 3
-.Qq In 2
-.Fd a
-6
-.In 4
-5
-.Sh DESCRIPTION
-1
-.In 2 3
-6
-.In 4
-5