Your bug report

#76452: 3.11 critical bug: diff -Naur a b does not show a unified diff when one of the file is empty

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 76452@debbugs.gnu.org.

-- 
76452: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=76452
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