don't bother supporting KRB5_AUTHDATA_SIGNTICKET_OLD
don't bother supporting KRB5_AUTHDATA_SIGNTICKET_OLD

madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal