Author: John Okely
MDL-59299 assignsubmission_file: Improve accepted filetypes help
http://git.moodle.org/gw?p=moodle.git;a=commit;h=e54d059d64128151e8729c3788b593aaafb8c01a
http://github.com/moodle/moodle/commit/e54d059d64128151e8729c3788b593aaafb8c01a
+ 3.4 en [acceptedfiletypes_help,assignsubmission_file]