cli: /disconnect on exit only if not already disconnected
cli: /disconnect on exit only if not already disconnected

Change-Id: I7fa77a1fdd4db73c84c398d8c4ab7499cd967250
Signed-off-by: Michael pasternak <af5566a40fc9757136fd9da9ca5e2dbdd9b039eb@redhat.com>

oVirt/ovirt-engine-cli,oVirt/ovirt-engine-cli