[groff] 11/80: groff_mm(7): Clarify `LI` macro behavior.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit 9d96c40a5086ad007d7de05a8548f29ed986c0fa
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Wed Nov 27 01:31:05 2024 -0600

    groff_mm(7): Clarify `LI` macro behavior.
---
 contrib/mm/groff_mm.7.man | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/contrib/mm/groff_mm.7.man b/contrib/mm/groff_mm.7.man
index a63f1643c..8b3b3b372 100644
--- a/contrib/mm/groff_mm.7.man
+++ b/contrib/mm/groff_mm.7.man
@@ -2573,12 +2573,13 @@ exceeds the text indentation,
 .I "groff mm"
 warns and uses one en of padding between the mark and the text.
 .
-A second argument
-prefixes
+The presence of a second argument prefixes
 .I mark
 to the
 .BR LB -configured
-mark and conditionally puts an unbreakable space
+mark and,
+as a GNU extension,
+conditionally puts an unbreakable space
 between the prefix and mark per the argument's Boolean value.
 .
 .