Author: Eloy Lafuente (stronk7)
MDL-29093 auth - help string now specifies MNet exception. Thanks Helen!
http://git.moodle.org/gw?p=moodle.git;a=commit;h=3ae79749f19aa9024db18acf1c014c20a305b82e
http://github.com/moodle/moodle/commit/3ae79749f19aa9024db18acf1c014c20a305b82e
+ 2.2 en [authpreventaccountcreation_help,core_admin]