[issue25545] email parsing docs: clarify that only ASCII strings are supported

[Terry J. Reedy]

Changes by Terry J. Reedy <tjreedy at udel.edu>:


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title: email parsing docs need to be clear that only ASCII strings are supported -> email parsing docs: clarify that only ASCII strings are supported

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue25545>
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