The fate package was inherited from SLE, but there it is not in any SLE product and this will never receive an update. The canonical source is FATE/FATE-stable. Switching to there. Fixes boo#966821 (rebuild problems)

Previously reviewed in RR#361104 plus another version https://build.opensuse.org/package/rdiff/openSUSE:Maintenance:4733/fate.openSUSE_Leap_42.1_Update?linkrev=base&rev=3