Author: Mark Nelson
MDL-60814 auth_ldap: prevent setting names breaking site upgrades
http://git.moodle.org/gw?p=moodle.git;a=commit;h=822fe4fc155af73b407c5d23b905be1470995d3b
http://github.com/moodle/moodle/commit/822fe4fc155af73b407c5d23b905be1470995d3b
+ 3.5 en [cannotmaprole,auth_ldap]