Author: Paul Holden
MDL-79485 tool_mfa: replace hard-coded verification lang strings.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=3f6dd170422aa42a5be2920920e626f77d558710
http://github.com/moodle/moodle/commit/3f6dd170422aa42a5be2920920e626f77d558710
+ 4.3 en [cancellogin,tool_mfa]