Test failure in PyICU 1.9.3

Created by: felixonmars

I am getting one test failure with the latest pyicu 1.9.3 release:

======================================================================
FAIL: testGetBestPattern (test.test_DateTimeParserGenerator.TestDateTimePatternGenerator)
Test a few different languages and common patterns.
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Traceback (most recent call last):
  File "/build/python-pyicu/src/PyICU-1.9.3/test/test_DateTimeParserGenerator.py", line 74, in testGetBestPattern
    self.assertEqual(sdf.format(self.date), locale_data[index])
AssertionError: 'May 10' != 'May 9'
- May 10
?     ^^
+ May 9
?     ^


----------------------------------------------------------------------
Ran 38 tests in 0.339s

FAILED (failures=1)

Any hints?