Minor coverage.

libmproxy/flow.py

@@ -827,7 +827,6 @@ class ClientConnect(StateObject):
     def __str__(self):
         if self.address:
             return "%s:%d"%(self.address[0],self.address[1])
-        return "None"
 
     def _load_state(self, state):
         self.close = True

test/test_flow.py

@@ -1191,6 +1191,8 @@ class TestClientConnect:
         c3 = c.copy()
         assert c3 == c
 
+        assert str(c)
+
 
 def test_decoded():
     r = tutils.treq()