Author: David Mudrák
MDL-80725 lang: Fix Help and documentation regressions
http://git.moodle.org/gw?p=moodle.git;a=commit;h=cb831f890f0ea7704e0d1b627ce0020e15abc596
http://github.com/moodle/moodle/commit/cb831f890f0ea7704e0d1b627ce0020e15abc596
+ 4.2 en [configdocroot,core_admin]