Git commits in Moodle 3.5.2 by Amaia Anabitarte

commit 02f31bb65bd5cf2ff4a178b9d5fc28d8dc0a6f7b
Author: Amaia Anabitarte <amaia@moodle.com>
Date:   Fri, 27 Jul 2018 00:17:58 +0800
Tag:    v3.5.2

MDL-62750 lang: Trim langlist setting values