Author: Helen Foster
MDL-26744 enrol meta lang string improvement thanks to Ray Lawrence
http://git.moodle.org/gw?p=moodle.git;a=commit;h=4b59f327cd4885c0e6f805149c1fdd536cb8140b
http://github.com/moodle/moodle/commit/4b59f327cd4885c0e6f805149c1fdd536cb8140b
+ 2.1dev en [nosyncroleids_desc,enrol_meta]