Updated patch packages fix security vulnerabilities

Updated patch package fixes security vulnerabilities: It was reported that a crafted diff file can make patch eat memory and later segfault (CVE-2014-9637). It was reported that the versions of the patch utility that support Git-style patches are vulnerable to a directory traversal flaw. This could allow an attacker to overwrite arbitrary files by applying a specially crafted patch, with the privileges of the user running patch (CVE-2015-1395). GNU patch before 2.7.4 allows remote attackers to write to arbitrary files via a symlink attack in a patch file (CVE-2015-1196).