SUSE is more strict about .spec.
* use SPDX license id
* add missing %ghost file directive
Release: cznic.{{ release }}%{?dist}
Summary: BIRD Internet Routing Daemon
-License: GPLv2+
+License: GPL-2.0-or-later
URL: https://bird.network.cz/
Source0: https://bird.network.cz/download/bird-%{version}.tar.gz
Source1: bird.service
%{_sbindir}/birdc
%{_sbindir}/birdcl
%dir %attr(0750,bird,bird) %{_localstatedir}/lib/bird
-%dir %attr(0750,bird,bird) %{_rundir}/bird
+%dir %attr(0750,bird,bird) %ghost %{_rundir}/bird
%if 0%{!?_without_doc:1}
%files doc