Developer credits
Git commits in Moodle 2.2.x by Lorenzo Nicora
commit dcc36c3aa2041665e5b77c63e29531f2e7b3d64e Author: Lorenzo Nicora <lorenzo.nicora@gmail.com> Date: Sun, 10 Jun 2012 15:49:37 +0800 Tag: v2.2.5 MDL-33531 Fixed the regexp used to find old backup files