Author: Zig Tan
MDL-61568 repository_local: Implement null privacy provider
http://git.moodle.org/gw?p=moodle.git;a=commit;h=3656528c4562cf5b10c98bb1cd880f75b0aaf780
http://github.com/moodle/moodle/commit/3656528c4562cf5b10c98bb1cd880f75b0aaf780
+ 3.3 en [privacy:metadata,repository_local]