use `BOOL` for `TCP_NODELAY` `setsockopt` value on Windows
This issue was found by the Wine project and mitigated there [1]. Windows' documented interface for `setsockopt` expects a `BOOL` (a `typedef` for `int`) for `TCP_NODELAY` [2]. Windows is forgiving and will accept any positive length and interpret the first byte of `*option_value` as the value, so this bug does not affect Windows itself, but does affect systems implementing Windows' interface more strictly, such as Wine. Wine was previously passing this through to the host's `setsockopt`, where, e.g., Linux requires that `option_len` be correct for the chosen option, and `TCP_NODELAY` expects an `int`. [1]: https://source.winehq.org/git/wine.git/commit/d6ea38f32dfd3edbe107a255c37e9f7f3da06ae7 [2]: https://docs.microsoft.com/en-us/windows/win32/api/winsock/nf-winsock-setsockopt
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