Developer credits
Git commits in Moodle 2.2.2 by David Penner
commit 5a479aa6286c72c6b00bfd8f19ee32e740c0f9e6 Author: David Penner <contributor@tracker.moodle.org> Date: Wed, 18 Jan 2012 11:19:27 +0800 Tag: v2.2.2 MDL-31160 block_navigation: Fixed incorrect thrid arg to substr.