Author: Marina Glancy
MDL-60926 auth: do not map very long profile fields
http://git.moodle.org/gw?p=moodle.git;a=commit;h=65a77c7381ab968c7c5a401627e16feb726cce8d
http://github.com/moodle/moodle/commit/65a77c7381ab968c7c5a401627e16feb726cce8d
+ 3.5 en [cannotmapfield,core_auth]