Author: Andrew Nicols
MDL-67544 mod_forum: Add missing aria label for discussion actions
http://git.moodle.org/gw?p=moodle.git;a=commit;h=b3958347047ae1c2ee0b80d9e516d8b4d3551a4a
http://github.com/moodle/moodle/commit/b3958347047ae1c2ee0b80d9e516d8b4d3551a4a
+ 3.7 en [togglediscussionmenu,mod_forum]