Author: sam marshall
MDL-64454 Admin: Configuration option for cron frequency warning
This change makes the warning time (default 200 seconds) configurable
in config.php.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=ff13ae5906ddcdd3b016f4edbf8590b8fd157af2
http://github.com/moodle/moodle/commit/ff13ae5906ddcdd3b016f4edbf8590b8fd157af2
+ 3.7 en [croninfrequent,core_admin]