Author: Laurent David
MDL-76386 core_user: Add/remove users dialog improvement
* Use language string to customise user information in the group Add/Remove dialog
http://git.moodle.org/gw?p=moodle.git;a=commit;h=183d97a956347d6a4887e34122b9e1be885cfbe8
http://github.com/moodle/moodle/commit/183d97a956347d6a4887e34122b9e1be885cfbe8
+ 4.2 en [usergroupselectorcount,core_user]