Author: Julien Boulen
MDL-58070 language: reword visible core string
http://git.moodle.org/gw?p=moodle.git;a=commit;h=ba17a2c3f82922ccf7816600f6a06d0bf93afb60
http://github.com/moodle/moodle/commit/ba17a2c3f82922ccf7816600f6a06d0bf93afb60
+ 3.3 en [coursevisibility,core]
+ 3.3 en [coursevisibility_help,core]