Don't allow breaking the output line after hyphens following escape

sequences.  Improves tic(1), sxpm(1), and a few Perl manuals.
Quirk found by naddy@ in milter-greylist(8).

1 files changed, 2 insertions, 0 deletions

diff --git a/roff.c b/roff.c
index be15f1ac..c1370154 100644
--- a/roff.c
+++ b/roff.c
@@ -1128,6 +1128,8 @@ roff_parsetext(struct buf *buf, int pos, int *offs)
 			esc = mandoc_escape((const char **)&p, NULL, NULL);
 			if (esc == ESCAPE_ERROR)
 				break;
+			while (*p == '-')
+				p++;
 			continue;
 		} else if (p == start) {
 			p++;