Fix mis-option identification for doc-tools-update-cli-reference
Fix mis-option identification for doc-tools-update-cli-reference

Fixes
1)"--json JSON JSON" case
2)"--id <cluster_id> ID" case

Change-Id: Ide1edce538c7316a1ddd7e6ddc9bd4b7aacfc43e
Closes-Bug: #1488505

openstack/openstack-doc-tools,savinash47/openstack-doc-tools,savinash47/openstack-doc-tools,savinash47/openstack-doc-tools,openstack/openstack-doc-tools