grep security and bug fix update

2.20-2 - Fixed invalid UTF-8 byte sequence error in PCRE mode by pcre-backported-fixes patch Resolves: rhbz1217080 - Fixed buffer overrun for grep -F Resolves: CVE-2015-1345 - Fixed \w and \W behaviour in multibyte locales Resolves: rhbz1159012 - Documented --fixed-regexp option Resolves:...