Your bug report

#39769: diff man page subjects are gone in apropos(1)

which was filed against the diffutils package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 39769@debbugs.gnu.org.

-- 
39769: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=39769
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