[issue1447222] tkinter Dialog fails when more than four buttons are used

[Mark Lawrence]

Changes by Mark Lawrence <breamoreboy at yahoo.co.uk>:


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stage:  -> patch review
type:  -> behavior
versions: +Python 2.7, Python 3.1, Python 3.2 -Python 2.3

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue1447222>
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