Blocked revisions 67976 via svnmerge

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  r67976 | georg.brandl | 2008-12-28 05:54:53 -0600 (Sun, 28 Dec 2008) | 7 lines

  Backport r67974:

  #4759: allow None as first argument of bytearray.translate(), for consistency with bytes.translate().

  Also fix segfault for bytearray.translate(x, None) -- will backport this part to 3.0 and 2.6.
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