[groff] 18/25: [mm]: Make "ms.cov" author support more flexible.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit 124e2f63642ca983874545757d00147a4a1ae909
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Sun Oct 27 23:36:32 2024 -0500

    [mm]: Make "ms.cov" author support more flexible.
    
    * contrib/mm/mm/ms.cov (cov@print-authors): Stop erroring out if no
      authors are defined; `AU` can be called simply to end title
      collection, no authors need be specified, and nothing breaks if they
      aren't.
---
 contrib/mm/ChangeLog | 6 ++++++
 contrib/mm/mm/ms.cov | 3 +--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/contrib/mm/ChangeLog b/contrib/mm/ChangeLog
index 39e826f66..4ad28589b 100644
--- a/contrib/mm/ChangeLog
+++ b/contrib/mm/ChangeLog
@@ -1,3 +1,9 @@
+2024-10-27  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+       * mm/ms.cov (cov@print-authors): Stop erroring out if no authors
+       are defined; `AU` can be called simply to end title collection,
+       no authors need be specified, and nothing breaks if they aren't.
+
 2024-10-27  G. Branden Robinson <g.branden.robinson@gmail.com>
 
        * m.tmac: Revamp debugging system.  The existing one was
diff --git a/contrib/mm/mm/ms.cov b/contrib/mm/mm/ms.cov
index 1c1ddb30c..10580fcda 100644
--- a/contrib/mm/mm/ms.cov
+++ b/contrib/mm/mm/ms.cov
@@ -42,8 +42,7 @@ http://savannah.gnu.org/bugs/?group=groff.
 ..
 .\"------------
 .de cov@print-authors
-.ie !\\n[cov*au] .@error COVEND: no authors (AU) defined
-.el \{\
+.if \\n[cov*au] \{\
 .      SP
 .      nr cov*i 0 1
 .      while \\n+[cov*i]<=\\n[cov*au] \{\