Git commits in Moodle 3.3.1 by Tobias Reischmann

commit c484b0574e698f605d19e0db2027cf586b81bc64
Author: Tobias Reischmann <tobias.reischmann@wi.uni-muenster.de>
Date:   Wed, 07 Jun 2017 18:43:22 +0800
Tag:    v3.3.1

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