Your bug report

#17230: [PATCH 1/2] grep: may also use Boyer-Moore algorithm for case-insensitive matching

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 17230@debbugs.gnu.org.

-- 
17230: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=17230
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