Author: Zig Tan
MDL-61568 repository_local: Implement null privacy provider
http://git.moodle.org/gw?p=moodle.git;a=commit;h=d4b288aa9f8287fa67e1616bbfd461f16306689c
http://github.com/moodle/moodle/commit/d4b288aa9f8287fa67e1616bbfd461f16306689c
+ 3.4 en [privacy:metadata,repository_local]