Implement the roff(7) .mc (right margin character) request.

The Tcl/Tk manual pages use this extensively.
Delete the TERM_MAXMARGIN hack, it breaks .mc inside .nf;
instead, implement a proper TERMP_BRNEVER flag.

1 files changed, 3 insertions, 1 deletions

diff --git a/roff.7 b/roff.7
index 86d6cb84..b2e8fb78 100644
--- a/roff.7
+++ b/roff.7
@@ -1296,7 +1296,9 @@ Set title line length.
 Currently ignored.
 .It Ic \&mc Ar glyph Op Ar dist
 Print margin character in the right margin.
-Currently ignored.
+The
+.Ar dist
+is currently ignored; instead, 1n is used.
 .It Ic \&mediasize Ar media
 Set the device media size.
 This is a Heirloom extension and currently ignored.