AppVeyor: Fix failing tests

tests/run/cdivision_CEP_516.pyx

@@ -185,9 +185,9 @@ def py_div_long(long a, long b):
     5
     >>> import sys
     >>> maxint = getattr(sys, ((sys.version_info[0] >= 3) and 'maxsize' or 'maxint'))
-    >>> py_div_long(-maxint-1, -1)
+    >>> py_div_long(-maxint-1, -1) # doctest: +ELLIPSIS
     Traceback (most recent call last):
     ...
-    OverflowError: value too large to perform division
+    OverflowError: ...
     """
     return a / b

tests/run/ptrdiff_t.pyx

@@ -2,18 +2,18 @@ from cython cimport typeof
 
 def test(ptrdiff_t i):
     """
-    >>> test(0)
+    >>> int(test(0))
     0
-    >>> test(1)
+    >>> int(test(1))
     1
-    >>> test(2)
+    >>> int(test(2))
     2
-    >>> test(-1)
+    >>> int(test(-1))
     -1
-    >>> test(-2)
+    >>> int(test(-2))
     -2
-    >>> str(test((1<<31)-1))
-    '2147483647'
+    >>> int(test((1<<31)-1))
+    2147483647
     """
     return i