Git commits in Moodle 3.9.5 by Brendan Heywood

commit 6feb10dd530506f81dc55be47cb9be482fdc86c4
Author: Brendan Heywood <brendan@catalyst-au.net>
Date:   Mon, 22 Feb 2021 11:43:14 +0800
Tag:    v3.9.5

MDL-70424 auth: Avoid random changes to $CFG->auth


commit af3e51fa820aa791fa5f8f5d4a99e1972d4fa3d0
Author: Brendan Heywood <brendan@catalyst-au.net>
Date:   Sat, 07 Nov 2020 14:27:46 +0800
Tag:    v3.9.5

MDL-51111 cache: Don't lock and write the config file if unchanged