cli messages for unauthorized users is regressed

1. Create a LDAP user and assign user a role in CB Server. 
2. Assign user - views_admin[*]
3. Now try and add a server using the user that has views_admin[*] role. In example below it is dave/password is the user which has views_admin[*] role.

With Spock, simply do a rebalance:

/opt/couchbase/bin/couchbase-cli rebalance --cluster=localhost
-u dave -p password
Message from command is -
Recieved unexpected status 403

On 4.6:
/opt/couchbase/bin/couchbase-cli rebalance --cluster=localhost -u dave -p password
ERROR: unable to rebalance cluster (403) Forbidden
{"message":"Forbidden. User needs one of the following permissions","permissions":["cluster.pools!write"]}

Note - The error message for Spock always returns - "Received unexpected status 403" - for every unauthorized users.