Git commits in Moodle 3.3.4 by David Knuplesch

commit e32a370df213c8ea75107c8a6a89445c4005a487
Author: David Knuplesch <david.knuplesch@uni-ulm.de>
Date:   Tue, 12 Dec 2017 18:44:44 +0800
Tag:    v3.3.4

MDL-60415 mod_lti: avoid confusing error-message