Git commits in Moodle 3.8.x by John Beedell

commit 81801a06856b31aea55eb251bf51e69a3c270fa7
Author: John Beedell <john.beedell@open.ac.uk>
Date:   Wed, 08 Jan 2020 18:33:59 +0800
Tag:    v3.8.2

MDL-66918 behat: Behat app step failing

commit 0de719024c80ad03372140116d20c553036b185f
Author: John Beedell <john.beedell@open.ac.uk>
Date:   Tue, 26 Nov 2019 00:32:34 +0800
Tag:    v3.8.1

MDL-67339 behat: Enhance Behat exception message