Fix debug with requests.

- From http://docs.python.org/2/library/functions.html#hasattr :
   hasattr(object, name) -- The arguments are an object and a string.
- Fixes bug 1124084.

Change-Id: I47283abff440abdf827598c2497519f3de510baf

keystoneclient/client.py

@@ -117,7 +117,7 @@ class HTTPClient(object):
             ch = logging.StreamHandler()
             _logger.setLevel(logging.DEBUG)
             _logger.addHandler(ch)
-            if hasattr(requests, logging):
+            if hasattr(requests, 'logging'):
                 requests.logging.getLogger(requests.__name__).addHandler(ch)
 
         # keyring setup