Adapt some exception messages for PyPy.

tests/run/pep448_test_extcall.pyx

@@ -224,10 +224,10 @@ def call_g_positional():
 
 def call_nonseq_positional1():
     """
-    >>> call_nonseq_positional1()
+    >>> call_nonseq_positional1()  # doctest: +ELLIPSIS
     Traceback (most recent call last):
       ...
-    TypeError: 'Nothing' object is not iterable
+    TypeError: ...Nothing...
 
     # TypeError: g() argument after * must be a sequence, not Nothing
     """
@@ -237,10 +237,10 @@ def call_nonseq_positional1():
 
 def call_nonseq_positional2():
     """
-    >>> call_nonseq_positional2()
+    >>> call_nonseq_positional2()  # doctest: +ELLIPSIS
     Traceback (most recent call last):
       ...
-    TypeError: 'Nothing' object is not iterable
+    TypeError: ...Nothing...
 
     # TypeError: g() argument after * must be a sequence, not Nothing
     """

tests/run/tuple.pyx

@@ -117,9 +117,9 @@ def tuple_of_args_tuple(*args):
 @cython.test_fail_if_path_exists('//SimpleCallNode//SimpleCallNode')
 def tuple_of_object(ob):
     """
-    >>> tuple(type(1))
+    >>> tuple(type(1))  # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    TypeError: 'type' object is not iterable
+    TypeError: ...type...
     >>> sorted(tuple(set([1, 2, 3])))
     [1, 2, 3]
     """