Logcheck devel - Apr 2010 - Bug#401259: logcheck: logcheck needs to override locale for grep

Another reason to set LC_ALL=C is  grep slowness in UTF-8 locale.
Depending on used patterns, I saw "grep -E" to be 6 times slower
compared to C locale, and I guess this was not the worst case. The
performance problem seems to be fixed in grep-2.6.* but it is not
available in Debian yet.

-- 
...Bye..Dmitry.