[PATCH] maint: run groff(1) when lint-ing man pages

Newer troff(1) complains about the TE macro:
  find/find.1:908: warning: tbl preprocessor failed, or it or soelim \
    was not run; table(s) likely not rendered (TE macro called with  \
    TW register undefined)

* build-aux/man-lint.sh: Change from troff(1) to groff(1).
---
 build-aux/man-lint.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build-aux/man-lint.sh b/build-aux/man-lint.sh
index b4026432..30f0335c 100755
--- a/build-aux/man-lint.sh
+++ b/build-aux/man-lint.sh
@@ -21,7 +21,7 @@ for manpage
 do
   what="lint check on manpage $manpage"
   echo -n "$what: "
-  messages="$( troff -t -man ${srcdir}/${manpage} 2>&1 >/dev/null )"
+  messages="$( groff -t -man ${srcdir}/${manpage} 2>&1 >/dev/null )"
   if test -z "$messages" ; then
       echo "passed"
   else
-- 
2.42.0