Your bug report

#17499: current dfa.c can malloc 0 bytes

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

The explanation is attached below, along with your original report.
If you require more details, please reply to 17499@debbugs.gnu.org.

-- 
17499: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=17499
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