Add manila-status to man-pages list
Add manila-status to man-pages list

manila-status was missing in the list of man-pages. So when building the
man-pages with:

    sphinx-build -b man doc/source doc/build/man

there is no "manila-status" in doc/build/man.

Change-Id: Ia2065af8d0ab51a0248d53b3474845ab429803d1

openstack/manila,openstack/manila