Python3's test_os.py fails 3 tests

[scottmc]

These appear to be Haiku related failures.

======================================================================
FAIL: test_utime_dir (__main__.StatAttributeTests)
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Traceback (most recent call last):
  File "test_os.py", line 349, in test_utime_dir
    self.assertEquals(st2.st_mtime, int(st.st_mtime-delta))
AssertionError: 1287124148.00734 != 1287124148

======================================================================
FAIL: test_ttyname (__main__.TestInvalidFD)
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Traceback (most recent call last):
  File "test_os.py", line 795, in check
    f(support.make_bad_fd(), *args)
OSError: [Errno -2147454966] Not a tty

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "test_os.py", line 788, in helper
    self.check(getattr(os, f))
  File "test_os.py", line 797, in check
    self.assertEqual(e.errno, errno.EBADF)
AssertionError: -2147454966 != -2147459072

======================================================================
FAIL: test_encodings (__main__.FSEncodingTests)
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Traceback (most recent call last):
  File "test_os.py", line 1203, in test_encodings
    check('iso-8859-15', b'\xef\xa4', '\xef\u20ac')
  File "test_os.py", line 1192, in check
    self.assertEqual(encoded, repr(bytesfn))
AssertionError: "b'\\xc3\\xaf\\xe2\\x82\\xac'" != "b'\\xef\\xa4'"
- b'\xc3\xaf\xe2\x82\xac'
+ b'\xef\xa4'

A binary build of python3 can be found here: ​http://ports-space.haiku-files.org/dev-lang/

Tests are in boot/common/lib/Python3.2/test to run use "python3 test_os.py"