> Changeset b9f7b1bf36aa should fix the test on Windows.

Oh, many tests are failing because of this change, so I reverted it.

======================================================================
ERROR: test_surrogatepass_handler (test.test_codecs.CP65001Test)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\buildbot.python.org\3.x.kloth-win64\build\lib\test\test_codecs.py", line 799, in test_surrogatepass_handler
    "abc\ud800def")
  File "C:\buildbot.python.org\3.x.kloth-win64\build\lib\unittest\case.py", line 642, in assertEqual
    assertion_func(first, second, msg=msg)
  File "C:\buildbot.python.org\3.x.kloth-win64\build\lib\unittest\case.py", line 1007, in assertMultiLineEqual
    if first != second:
ValueError: illegal UTF-16 surrogate


======================================================================
ERROR: test_unicode (test.test_array.ArrayReconstructorTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\buildbot.python.org\3.x.kloth-win64\build\lib\test\test_array.py", line 183, in test_unicode
    msg="{0!r} != {1!r}; testcase={2!r}".format(a, b, testcase))
  File "C:\buildbot.python.org\3.x.kloth-win64\build\lib\unittest\case.py", line 642, in assertEqual
    assertion_func(first, second, msg=msg)
  File "C:\buildbot.python.org\3.x.kloth-win64\build\lib\unittest\case.py", line 632, in _baseAssertEqual
    if not first == second:
ValueError: illegal UTF-16 surrogate

======================================================================
ERROR: test_byteswap (test.test_array.UnicodeTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\buildbot.python.org\3.x.kloth-win64\build\lib\test\test_array.py", line 239, in test_byteswap
    self.assertNotEqual(a, b)
  File "C:\buildbot.python.org\3.x.kloth-win64\build\lib\unittest\case.py", line 648, in assertNotEqual
    if not first != second:
ValueError: illegal UTF-16 surrogate

======================================================================
FAIL: test_issue17223 (test.test_array.UnicodeTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\buildbot.python.org\3.x.kloth-win64\build\lib\test\test_array.py", line 1082, in test_issue17223
    self.assertRaises(ValueError, a.tounicode)
AssertionError: ValueError not raised by tounicode