[docs] [issue29688] Add support for Path.absolute()

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

posixpath.abspath() collapses "<path>/<symlink>/.." to "<path>", this is not correct. Not sure about ntpath.abspath().

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nosy: +serhiy.storchaka

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue29688>
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