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=6e56d9dcb72490bd2575ac02df19e7ca1cf3c000
http://github.com/moodle/moodle/commit/6e56d9dcb72490bd2575ac02df19e7ca1cf3c000
+ 2.4 en [configfullnamedisplay,core_admin]