Author: Paul Holden
MDL-79267 mod_forum: define report subplugin type language strings.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=d3070236acc7733cc352470aa3a38e70c9a20486
http://github.com/moodle/moodle/commit/d3070236acc7733cc352470aa3a38e70c9a20486
+ 4.1 en [subplugintype_forumreport,mod_forum]
+ 4.1 en [subplugintype_forumreport_plural,mod_forum]