Git commits in Moodle 3.6.5 by David Mudrák

commit ff0847e74b4d0b6fb079dd48a8bbfa383e6be2ba
Author: David Mudrák <david@moodle.com>
Date:   Wed, 26 Jun 2019 00:05:03 +0800
Tag:    v3.6.5

MDL-66003 lang: Use the updated strings in the tests