couchbase-cli usage incorrect, port shld not be passed in --cluster or -c parameter.

root@cen-1910 bin]# ./couchbase-cli -help
usage: couchbase-cli COMMAND CLUSTER [OPTIONS]

CLUSTER is --cluster=HOST[:PORT] or -c HOST[:PORT]

Per cluster usage, port should be passed. But passing a port yields an error:

[root@cen-1910 bin]# ./couchbase-cli server-list --cluster=10.3.2.49:9001 -u Administrator -p password
ERROR: command: server-list: 10.3.2.49:9001, (111, 'Connection refused')

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[root@cen-1910 bin]# ./couchbase-cli server-list -c 10.3.2.49:9001 -u Administrator -p password
ERROR: command: server-list: 10.3.2.49:9001, (111, 'Connection refused')

SHOULD BE (without a port):
[root@cen-1910 bin]# ./couchbase-cli server-list --cluster=10.3.2.49 -u Administrator -p password
ns_1@127.0.0.1 10.3.2.49:8091 healthy active

pls fix.