Your bug report

#21023: REQUEST: --no-dereference missing from manpage + please make a short option for it

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 21023@debbugs.gnu.org.

-- 
21023: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=21023
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