[docs] [issue22832] Tweak parameter names for fcntl module

[Alex Shkop]

Alex Shkop added the comment:

Looks like default value for mutate_flag in ioctl() should be False. Docstring says:

"If the argument is a mutable buffer and the mutable_flag argument is not
passed or is false, the behavior is as if a string had been passed."

Should I change the default value or the docstring?

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22832>
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