[docs] [issue15068] fileinput requires two EOF when reading stdin

[Serhiy Storchaka]

Serhiy Storchaka <storchaka at gmail.com> added the comment:

Note that in the rare cases, when stdio ends immediately on the limit of the read buffer, just one EOF is sufficient. In particular for read(1) one EOF is sufficient always, and for read(2) it is sufficient in about half of the cases.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue15068>
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