Developer credits
Git commits in Moodle 2.3.x by Ryan Panning
commit 3b89216c24e28c57f4e69cf1e4a902885add2fb5 Author: Ryan Panning <Ryan.Panning@district196.org> Date: Wed, 10 Apr 2013 14:38:05 +0800 Tag: v2.3.7 MDL-38525: Assignment - print exception message when assignment upgrade fails.