Author: Michael de Raadt
MDL-34779 settings: Updating lang string corrposnding to the fullnamedisplay setting
http://git.moodle.org/gw?p=moodle.git;a=commit;h=d62450f1dc710e5456a3b7214cfd5fbeb30aee1f
http://github.com/moodle/moodle/commit/d62450f1dc710e5456a3b7214cfd5fbeb30aee1f
+ 2.2 en [configfullnamedisplay,core_admin]