Author: Andreas Grabs
MDL-27827 - Missing messageprovider:message language string
http://git.moodle.org/gw?p=moodle.git;a=commit;h=29f02f10f0cc7a408633fdee9112b89951cb88f0
http://github.com/moodle/moodle/commit/29f02f10f0cc7a408633fdee9112b89951cb88f0
+ 2.0 en [messageprovider:message,mod_feedback]