Git commits in Moodle 2.3.x by prateeksachan

commit b4dcb723ff880dc5f7bd6a333305266bce7c459e
Author: prateeksachan <ps@prateeksachan.com>
Date:   Sun, 31 Mar 2013 02:09:56 +0800
Tag:    v2.3.7

MDL-38361: Fixed typos in mod/assign/locallib.php