netlink: fix pep8 for 1.4.5 (was fine for 1.4.6)

Change-Id: Ie0d16267e0ed7788c5a7190e1e7e2793fdd0ba1f
Signed-off-by: Antoni S. Puimedon <asegurap@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/24602
Reviewed-by: Dan Kenigsberg <danken@redhat.com>