[groff] 22/27: [doc,man]: Clarify purpose of compatibility mode.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit 51ebf42605175d03d415ac06f10f267eb9a6dc13
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Wed Jan 1 23:04:37 2025 -0600

    [doc,man]: Clarify purpose of compatibility mode.
---
 doc/groff.texi.in    | 16 ++++++++++++----
 man/groff_diff.7.man |  5 +++--
 2 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/doc/groff.texi.in b/doc/groff.texi.in
index dc9135b8b..0b64d29f0 100644
--- a/doc/groff.texi.in
+++ b/doc/groff.texi.in
@@ -17811,10 +17811,18 @@ and @code{pso}.
 @cindex compatibility mode
 @cindex mode, compatibility
 
-Some implementation differences between GNU and @acronym{AT&T}
-@command{troff}s are thought too important to neglect; @code{groff}
-therefore makes available a @dfn{compatibility mode} in an effort to
-keep documents prepared for AT&T @command{troff} rendering well.
+Some syntactical and behavioral differences between GNU and
+@acronym{AT&T}
+@command{troff}s
+are thought too important to neglect;
+GNU
+@command{troff} @c GNU
+@code{groff}
+therefore makes available a
+@dfn{compatibility mode}
+in an effort to keep documents prepared for AT&T
+@command{troff}
+rendering well.
 
 @cindex long names
 @cindex names, long
diff --git a/man/groff_diff.7.man b/man/groff_diff.7.man
index dace7940d..d63f55352 100644
--- a/man/groff_diff.7.man
+++ b/man/groff_diff.7.man
@@ -5639,10 +5639,11 @@ to the standard error stream.
 .SH "Compatibility mode"
 .\" ====================================================================
 .
-Some implementation differences between GNU and AT&T
+Some syntactical and behavioral differences between GNU
 .IR troff s \" generic
 are thought too important to neglect;
-.I groff
+GNU
+.I troff \" GNU
 therefore makes available a
 .I "compatibility mode"
 in an effort to keep documents prepared for AT&T