Git commits in Moodle 3.7.5 by Adrian Greeve

commit 77a359ca7b3bba3eab9718653dcf7fc3a762fc49
Author: Adrian Greeve <abgreeve@gmail.com>
Date:   Fri, 24 Jan 2020 10:17:27 +0800
Tag:    v3.7.5

weekly release 3.7.4+