Requires wp-admin/includes/ms.php to make `upload_is_user_over_quota()` function available to multisite users uploading files. Props JakePT, rachelbaker. Fixes #44864. Built from https://develop.svn.wordpress.org/trunk@43603 git-svn-id: http://core.svn.wordpress.org/trunk@43432 1a063a9b-81f0-0310-95a4-ce76da25c4cd