[issue4890] handling empty text search pattern in tkinter

[Matthias Kievernagel]

Changes by Matthias Kievernagel <mkiever at web.de>:


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keywords: +patch
Added file: http://bugs.python.org/file12661/text_search_pattern.patch

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue4890>
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