Don't initialize stdout during io cleanup #119394
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Slightly simplify the `std::io::cleanup` code by using `OnceCell::get` instead of checking initialization manually with `get_or_init`. This also has the consequence of not initializing stdout with an empty buffer if it hasn't been already, but I believe this is inconsequential given that this code only runs at process exit.
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This doesn't disable buffering unlike the previous code, which may matter if |
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Slightly simplify the
std::io::cleanupcode by usingOnceCell::getinstead of checking initialization manually withget_or_init.This also has the consequence of not initializing stdout with an empty buffer if it hasn't been already, but I believe this is inconsequential given that this code only runs at process exit.