It seems that even when there's a node/example.com.json, knife zero chef_client example.com doesn't work, and instead, we must use knife zero chef_client name:example.com
Would be great if knife-zero assumed a default key, either name or fqdn (I prefer "name", as it should intuitiveless always match the json filename in nodes/. Yes, in the current knife-zero this is also the fqdn, but this need not necessarily be the case in the future)