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Merge bzr.dev into cleanup

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bzrlib/tests/test_tuned_gzip.py
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        # and it should be new member time in the stream.
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        self.failUnless(myfile._new_member)
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    def test_negative_crc(self):
 
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        """Content with a negative crc should not break when written"""
 
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        sio = StringIO()
 
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        gfile = tuned_gzip.GzipFile(mode="w", fileobj=sio)
 
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        gfile.write("\xFF")
 
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        gfile.close()
 
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        self.assertEqual(gfile.crc & 0xFFFFFFFFL, 0xFF000000L)
 
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        self.assertEqual(sio.getvalue()[-8:-4], "\x00\x00\x00\xFF")
 
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class TestToGzip(TestCase):
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