Developer credits
Git commits in Moodle 3.10.x by ScottVerbeek
commit 4b9b0839b6f3fb23a35cc0fd4a0b84667ba83d75 Author: ScottVerbeek <scottverbeek@catalyst-au.net> Date: Fri, 19 Feb 2021 08:28:54 +0800 Tag: v3.10.4 MDL-66673 groups: Stop notice when messaging system is disabled