make a doctest cover pypy's error message

tests/run/dict.pyx

@@ -90,14 +90,14 @@ def item_creation_sideeffect(L, sideeffect, unhashable):
     >>> L = []
     >>> item_creation_sideeffect(L, sideeffect, unhashable)  # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    TypeError:... unhashable ...
+    TypeError: ...unhashable...
     >>> L
     [2, 4]
 
     >>> L = []
     >>> {1:2, sideeffect(2): 3, 3: 4, unhashable(4): 5, sideeffect(5): 6}  # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    TypeError:... unhashable ...
+    TypeError: ...unhashable...
     >>> L
     [2, 4]
     """