Using patches from git makes it clean which changes are included in Fedora
New workflow:
1. clone https://github.com/fedora-selinux/selinux
2. create patchset
$ git format-patch 20190315 -- policycoreutils python gui sandbox dbus semodule-utils restorecond
3. update spec file
$ for j in [0-9]*.patch; do printf "Patch%s: %s\n" ${j/-*/} $j; done
# deleted: restorecond-fedora.patch