[groff] 01/16: groff_mm(7): Update `SG` description.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit 93ddbc621c544a8ca43befac2c67a8186a416808
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Wed Aug 23 11:48:17 2023 -0500

    groff_mm(7): Update `SG` description.
    
    Testing reveals that DWB 3.3 mm completely ignores `AU` calls in all
    `LT` letter types.  I also reconfirmed that it demands that `WA`/`WE` be
    called for `LT` letters.  Reflect these facts.
---
 contrib/mm/groff_mm.7.man | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/contrib/mm/groff_mm.7.man b/contrib/mm/groff_mm.7.man
index 3124b27ad..d51d03123 100644
--- a/contrib/mm/groff_mm.7.man
+++ b/contrib/mm/groff_mm.7.man
@@ -3383,13 +3383,15 @@ See
 .BR 1 ]]
 Write a signature line.
 .
-Authors' name(s) are placed after the formal closing;
+Authors' names are placed after the formal closing;
 see
 .B LT
+(one author only)
 and
 .BR MT .
 .
-Reference data
+For memoranda,
+reference data
 (the location,
 department,
 and initials specified in an
@@ -3399,14 +3401,10 @@ followed by any
 .IR arg ,
 are written at the left margin preceding the last author's name,
 or preceding the first if a second argument is present and the
-memorandum or letter type supports it.
+memorandum type supports it.
 .
 See section \[lq]Internals\[rq] below.
 .
-No reference data are written for author(s) specified by
-.BR WA / WE .
-.\" XXX: This has tension with our advice to use only WA/WE with LT.
-.
 .
 .TP
 .BR SK \~\c