Author: Gordon Bateson
MDL-79863 qtype_ordering: qtype_ordering fix small typo in language file and optimize logic in form validation
http://git.moodle.org/gw?p=moodle.git;a=commit;h=4a70e6211fa835e6289b83e115c0572793d6665e
http://github.com/moodle/moodle/commit/4a70e6211fa835e6289b83e115c0572793d6665e
- 4.4 en [err_draggableitemsduplication,qtype_ordering]