Getting Critical Traceback on cinder_api check when the check fails. Should be an appropriate error message.

-------

    CINDER_API
    ----------
     
    CRITICAL: Traceback (most recent call last):
      File "/usr/lib/python2.7/site-packages/oschecks/utils.py", line 110, in safe_run
        method()
      File "/usr/lib/python2.7/site-packages/oschecks/cinder.py", line 44, in _check_cinder_api
        elapsed, quotas = utils.timeit(quotas_list)
      File "/usr/lib/python2.7/site-packages/oschecks/utils.py", line 97, in wrapper
        res = func(*arg, **kw)
      File "/usr/lib/python2.7/site-packages/oschecks/utils.py", line 105, in timeit
        return func(*args, **kwargs)
      File "/usr/lib/python2.7/site-packages/oschecks/cinder.py", line 42, in quotas_list
        return client.quotas.get(options.os_tenant_name)
      File "/usr/lib/python2.7/site-packages/cinderclient/v1/quotas.py", line 39, in get
        "quota_set")
      File "/usr/lib/python2.7/site-packages/cinderclient/base.py", line 308, in _get
        resp, body = self.api.client.get(url)
      File "/usr/lib/python2.7/site-packages/cinderclient/client.py", line 393, in get
        return self._cs_request(url, 'GET', **kwargs)
      File "/usr/lib/python2.7/site-packages/cinderclient/client.py", line 342, in _cs_request
        self.authenticate()
      File "/usr/lib/python2.7/site-packages/cinderclient/client.py", line 506, in authenticate
        auth_url = self._v2_auth(auth_url)
      File "/usr/lib/python2.7/site-packages/cinderclient/client.py", line 576, in _v2_auth
        self._authenticate(url, body)
      File "/usr/lib/python2.7/site-packages/cinderclient/client.py", line 587, in _authenticate
        allow_redirects=True)
      File "/usr/lib/python2.7/site-packages/cinderclient/client.py", line 320, in request
        **kwargs)
      File "/usr/lib/python2.7/site-packages/requests/api.py", line 57, in request
        return session.request(method=method, url=url, **kwargs)
      File "/usr/lib/python2.7/site-packages/requests/sessions.py", line 475, in request
        resp = self.send(prep, **send_kwargs)
      File "/usr/lib/python2.7/site-packages/requests/sessions.py", line 585, in send
        r = adapter.send(request, **kwargs)
      File "/usr/lib/python2.7/site-packages/requests/adapters.py", line 467, in send
        raise ConnectionError(e, request=request)
    ConnectionError: HTTPConnectionPool(host='10.35.169.17', port=5000): Max retries exceeded with url: /v2.0/tokens (Caused by NewConnectionError('<requests.packages.urllib3.connection.HTTPConnection object at 0x1ce7490>: Failed to establish a new connection: [Errno 113] No route to host',))