Merged revisions 77590 via svnmerge from

Merged revisions 77590 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r77590 | mark.dickinson | 2010-01-17 21:02:55 +0000 (Sun, 17 Jan 2010) | 14 lines

  Merged revisions 77589 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

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    r77589 | mark.dickinson | 2010-01-17 20:57:56 +0000 (Sun, 17 Jan 2010) | 7 lines

    Issue #7632: When Py_USING_MEMORY_DEBUGGER is defined, disable the
    private memory allocation scheme in dtoa.c, along with a piece of code
    that caches powers of 5 for future use.  This makes it easier to
    detect dtoa.c memory leaks with Valgrind or similar tools.

    Patch by Stefan Krah.
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