[docs] [issue37014] [First easy issue] fileinput module should document that openhook and mode are ignored when reading from stdin

[Michele Angrisano]

Change by Michele Angrisano <michele.angrisano at gmail.com>:


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keywords: +patch
pull_requests: +13457
stage:  -> patch review

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37014>
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