Author: Zig Tan
MDL-61568 repository_local: Implement null privacy provider
http://git.moodle.org/gw?p=moodle.git;a=commit;h=9dbd8702c6d690bfe865de102cc2de5ce436ebb4
http://github.com/moodle/moodle/commit/9dbd8702c6d690bfe865de102cc2de5ce436ebb4
+ 3.5 en [privacy:metadata,repository_local]