Author: raortegar
MDL-78511 tool_mfa: SMS factor include behat tests anf fix validation
http://git.moodle.org/gw?p=moodle.git;a=commit;h=e894123a4d8ed60de2612bb207a240810b4bc2f8
http://github.com/moodle/moodle/commit/e894123a4d8ed60de2612bb207a240810b4bc2f8
+ 4.4 en [error:emptyverification,factor_sms]