Author: Andrew Nicols
MDL-61819 editor: Implement editor null providers
http://git.moodle.org/gw?p=moodle.git;a=commit;h=1e9ba157828914d333d64c71b8aa4c24abf62f8d
http://github.com/moodle/moodle/commit/1e9ba157828914d333d64c71b8aa4c24abf62f8d
+ 3.3 en [privacy:metadata,editor_textarea]
+ 3.3 en [privacy:metadata,editor_tinymce]