Libvirt developers would like to be copied on patches to qemu-doc
appendix "Deprecated features".  Do them the favor.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180716073226.21127-3-armbru@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>