Author: Adrian Greeve
MDL-32547 backup: Add setting for backup folder tidy up.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=c35d736a443d6bc89a7c42b7f01cd73ffb75960e
http://github.com/moodle/moodle/commit/c35d736a443d6bc89a7c42b7f01cd73ffb75960e
+ 2.9 en [configtempdatafoldercleanup,core_admin]
+ 2.9 en [tempdatafoldercleanup,core_admin]