Git commits in Moodle 3.8.x by Nicolas Martignoni

commit 6fb0f6f941a04c312881900c095a8bce38d391bf
Author: Nicolas Martignoni <nicolas@martignoni.net>
Date:   Tue, 23 Jun 2020 18:23:36 +0800
Tag:    v3.8.4

MDL-68992 Privacy: Update default minimal digital age of consent