Author: Tim Hunt
MDL-47494 ddwtos: Some minor coding style clean-up.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=8edf95a2bcbb55c10eb995dcef46f499aabc9d41
http://github.com/moodle/moodle/commit/8edf95a2bcbb55c10eb995dcef46f499aabc9d41
+ 3.0 en [addingddwtos,qtype_ddwtos]
+ 3.0 en [addmorechoiceblanks,qtype_ddwtos]
+ 3.0 en [editingddwtos,qtype_ddwtos]