Author: Zig Tan
MDL-61881 report_configlog: Implement null privacy provider
http://git.moodle.org/gw?p=moodle.git;a=commit;h=c68b4a9d049a188f6e99a0c3455fc58d7eb2f444
http://github.com/moodle/moodle/commit/c68b4a9d049a188f6e99a0c3455fc58d7eb2f444
+ 3.5 en [privacy:metadata,report_configlog]