Author: David Mudrak
MDL-29135 Reworded login prompt with SSO over MNet enabled
http://git.moodle.org/gw?p=moodle.git;a=commit;h=190bbc160309719adfbfe7783852c25b2c0b001c
http://github.com/moodle/moodle/commit/190bbc160309719adfbfe7783852c25b2c0b001c
+ 2.2 en [potentialidps,core_auth]