Git commits in Moodle 3.5.6 by Dmitrii Metelkin

commit c4658fd9e2f679e99266e8f431c48a9a049e457d
Author: Dmitrii Metelkin <dmitriim@catalyst-au.net>
Date:   Wed, 20 Mar 2019 06:43:15 +0800
Tag:    v3.5.6

MDL-65112 mod_lesson: fix html for shortanswer responses