Update helpers-common.conf

fixed grep pattern: escape dot-char in search-IP and more restrictive boundaries (IPv6-capable)

config/action.d/helpers-common.conf

@@ -5,7 +5,7 @@
 #   (printf %%b "Log-excerpt contains 'test':\n"; %(_grep_logs)s; printf %%b "Log-excerpt contains 'test':\n") | mail ...
 #
 _grep_logs = logpath="<logpath>"; grep <grepopts> -E %(_grep_logs_args)s $logpath | <greplimit>
-_grep_logs_args = '(^|[^0-9:])<ip>([^0-9:]|$)'
+_grep_logs_args = "(^|[^0-9a-fA-F:])$(echo '<ip>' | sed 's/\./\\./g')([^0-9a-fA-F:]|$)"
 
 # Used for actions, that should not by executed if ticket was restored:
 _bypass_if_restored = if [ '<restored>' = '1' ]; then exit 0; fi;