[issue4898] {context, unified}_diff add spurious trailing whitespace if fromfiledate/tofiledate are emptyk

[anatoly techtonik]

anatoly techtonik <techtonik at gmail.com> added the comment:

Another 'easy' patch hangs for ages. =/

tag:easy
tag:difflib

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nosy: +techtonik

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<http://bugs.python.org/issue4898>
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