MB-8209: Need to process vbucket 0
MB-8209: Need to process vbucket 0

if vbucket will fail for vbucket 0, but it is a valid case.

Change-Id: I73a7fa7c390be17a863bf5b11f660721df0c826e

couchbase/couchbase-cli,couchbaselabs/couchbase-cli,couchbaselabs/couchbase-cli,couchbase/couchbase-cli,couchbaselabs/couchbase-cli