Author: Simey Lameze
MDL-48368 course: Add warning message to pending courses page
http://git.moodle.org/gw?p=moodle.git;a=commit;h=82356399b97be933c4d72f9c55b797e49b8c8232
http://github.com/moodle/moodle/commit/82356399b97be933c4d72f9c55b797e49b8c8232
+ 2.9 en [courserequestwarning,core]