Author: Jun Pataleta
MDL-35971 mod_forum: Add proper discussion list table description
http://git.moodle.org/gw?p=moodle.git;a=commit;h=010a253a2309f1213a6e58eef7eece9c1f03b00e
http://github.com/moodle/moodle/commit/010a253a2309f1213a6e58eef7eece9c1f03b00e
+ 3.9 en [showingcountoftotaldiscussions,mod_forum]