Developer credits
Git commits in Moodle 3.4.x by Brendan Heywood
commit 1daf3fafc099334ddef4c234a64c1e15a0a9cc86 Author: Brendan Heywood <brendan@catalyst-au.net> Date: Tue, 05 Dec 2017 14:05:47 +0800 Tag: v3.4.1 MDL-60968 auth: Allow more flexibility with mapping attributes