Git commits in Moodle 2.3.1 by Ankit Agarwal

commit fc14c79fc9815aff333221f670da51b1d07ed5ef
Author: Ankit Agarwal <ankit@moodle.com>
Date:   Mon, 30 Apr 2012 11:12:20 +0800
Tag:    v2.3.1

MDL-32605 calendar: Fixing the missing parameter for get_string call