Clear up trailing whitespace.

Author: Lukasa

test/test_hyper.py

@@ -56,8 +56,8 @@ def test_connections_accept_proxy_hosts_and_ports(self):
         assert c.proxy_port == 8443
 
     def test_connections_can_parse_proxy_hosts_and_ports(self):
-        c = HTTP20Connection('www.google.com', 
-                             proxy_host='localhost', 
+        c = HTTP20Connection('www.google.com',
+                             proxy_host='localhost',
                              proxy_port=8443)
         assert c.host == 'www.google.com'
         assert c.proxy_host == 'localhost'