Git commits in Moodle 3.2.4 by Tobias Reischmann

commit c5a8568799aa9e7de297f83fc97cd1bd3a83e1b7
Author: Tobias Reischmann <tobias.reischmann@wi.uni-muenster.de>
Date:   Wed, 07 Jun 2017 18:43:22 +0800
Tag:    v3.2.4

MDL-59173 tablelib.php: changed default of $params in set_sql to array()