Git commits in Moodle 3.3.6 by Arnaud Trouvé

commit a27e44f244536cccda7ea17d9bbd10b1d2babb59
Author: Arnaud Trouvé <moodle@arnaudtrouve.fr>
Date:   Sat, 20 Jan 2018 00:47:54 +0800
Tag:    v3.3.6

MDL-61248 admin: fix incorrectly initialized property