Spaces around operators

Change-Id: Ib9244cf175c9bbdeb34057b3b53fe7ad625e0a01
Signed-off-by: Vinzenz Feenstra <vfeenstr@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/27715
Reviewed-by: Nir Soffer <nsoffer@redhat.com>
Reviewed-by: Antoni Segura Puimedon <asegurap@redhat.com>
Reviewed-by: Francesco Romani <fromani@redhat.com>
Reviewed-by: Dan Kenigsberg <danken@redhat.com>