Git commits in Moodle 3.11.x by Xuan Gui

commit a32c076d0b88e4359fe8cffc1d5bcfb6e7a2901b
Author: Xuan Gui <xuangui@catalyst-au.net>
Date:   Fri, 12 Feb 2021 11:41:09 +0800
Tag:    v3.11.0-beta

MDL-70649 files: Alternative security helper