Changing libvirt configure print

Change-Id: I081a5f8f13eb035994179174c976b2c2b629b74d
Signed-off-by: Yaniv Bronhaim <ybronhei@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/17296
Reviewed-by: Dan Kenigsberg <danken@redhat.com>