MDL-29093 auth - help string changed to VBFET suggestion
(very best favourite english translator, aka. Helen
http://git.moodle.org/gw?p=moodle.git;a=commit;h=efb0aacf376eb3f13d80e492c19201b7e13480b2
http://github.com/moodle/moodle/commit/efb0aacf376eb3f13d80e492c19201b7e13480b2
+ 2.1 en [authpreventaccountcreation_help,core_admin]