tests/cli/ceph/help.t: fix expected output

Broken by 713d2e0

Signed-off-by: Joao Eduardo Luis <joao.luis@inktank.com>
Merge pull request #986 from ceph/cuttlefix-fix-tests

tests/cli/ceph/help.t: fix expected output
make check on cuttlefish : the problem exists. make check on cuttlefix ( nice typo ;-) : the problem is fish. And the only diff between cuttlefix and cuttlefish is  	249c357.

Reviewed-by: Loic Dachary <loic@dachary.org>