[issue9416] complex formatting incorrectly omits a negative zero real part

[Mark Dickinson]

Changes by Mark Dickinson <dickinsm at gmail.com>:


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keywords: +patch
Added file: http://bugs.python.org/file18252/issue9416_tests.patch

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue9416>
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