Author: cescobedo
MDL-61296 auth_ldap: remove PHP notices when field does not exist.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=a282b0f51d49f93651783439e5d37777cd690882
http://github.com/moodle/moodle/commit/a282b0f51d49f93651783439e5d37777cd690882
+ 3.6 en [updateremfailfield,auth_ldap]