Author: Zig Tan
MDL-61568 repository_filesystem: Implement null privacy provider
http://git.moodle.org/gw?p=moodle.git;a=commit;h=18b5d648d3aea916509ba597afc0c147dd682771
http://github.com/moodle/moodle/commit/18b5d648d3aea916509ba597afc0c147dd682771
+ 3.4 en [privacy:metadata,repository_filesystem]