Author: Zig Tan
MDL-61881 report_configlog: Implement null privacy provider
http://git.moodle.org/gw?p=moodle.git;a=commit;h=4017db1b69072dee354322169e4e6cb3ad523988
http://github.com/moodle/moodle/commit/4017db1b69072dee354322169e4e6cb3ad523988
+ 3.3 en [privacy:metadata,report_configlog]