We're leaking the fd when sending cut'n'paste. Failure to close can also
makes the other end unhappy because it doesn't know the paste is finished.
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Yong Bakos <ybakos@humanoriented.com>
Reviewed-by: Jonas Ådahl <jadahl@gmail.com>