HEAD-2169: sdc-image-sync doesn't exclude 'admin' owned zones that are NOT core zones
HEAD-2169: sdc-image-sync doesn't exclude 'admin' owned zones that are NOT core zones

joyent/sdc-headnode,numericillustration/sdc-headnode,joyent/sdc-headnode,numericillustration/sdc-headnode,kaizengarden/sdc-headnode,kaizengarden/sdc-headnode,numericillustration/sdc-headnode,kaizengarden/sdc-headnode,joyent/sdc-headnode,joyent/sdc-headnode,kaizengarden/sdc-headnode