Author: Tim Hunt
MDL-28652 qtype calculated, bad display of placeholder names on the editing form.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=6ef90fdef995f0674b2b0937c5e11d159c939860
http://github.com/moodle/moodle/commit/6ef90fdef995f0674b2b0937c5e11d159c939860
+ 2.2 en [sharedwildcard,qtype_calculated]