When there's a failure python-cicoclient prints key along with debugging info

[nigelbabu]

When Duffy is done, python-cico client prints out debugging information including my API key.

HTTPConnectionPool(host='admin.ci.centos.org', port=8080): Max retries exceeded with url: /Inventory?key=xxxxxx-xxxxx-xxxx-xxxxx-xxxxxxxxxx (Caused by NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x24c5110>: Failed to establish a new connection: [Errno 111] Connection refused',))