Your bug report

#26690: Crash with --ignore-matching-lines

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 26690@debbugs.gnu.org.

-- 
26690: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=26690
GNU Bug Tracking System
Contact help-debbugs@gnu.org with problems