openrc: Make init scripts executable on install
openrc: Make init scripts executable on install

When installing openrc init scripts, we take whatever mode the
generated files are in an copy them under /etc/init.d/. This is
not ideal, because those files are not executable and they should
be.

Resolves: https://gitlab.com/libvirt/libvirt/-/issues/250
Signed-off-by: Michal Privoznik <83d82aaba2eed257f4814b0c239c260c4caaadf0@redhat.com>
Reviewed-by: Ani Sinha <3f79ccd1432f8960aa9062d90665feabb5fd19d8@anisinha.ca>
Reviewed-by: Andrea Bolognani <3ada0bee826c753786fdbba72243dfba997094cf@redhat.com>

libvirt/libvirt,libvirt/libvirt,crobinso/libvirt,crobinso/libvirt,zippy2/libvirt,libvirt/libvirt,olafhering/libvirt,olafhering/libvirt,jfehlig/libvirt,zippy2/libvirt,crobinso/libvirt,zippy2/libvirt,olafhering/libvirt,libvirt/libvirt,jfehlig/libvirt,jfehlig/libvirt,olafhering/libvirt,jfehlig/libvirt,zippy2/libvirt,crobinso/libvirt