[issue5772] For float.__format__, don't add a trailing ".0" if we're using no type code and we have an exponent

[Eric Smith]

Eric Smith <eric at trueblade.com> added the comment:

For a more detailed discussion, scroll to the bottom of
http://mail.python.org/pipermail/python-dev/2009-April/088417.html

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue5772>
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