fix: flush stdout after print in r_write_console_ex#44
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R's progress bars (e.g. pak::pak()) use carriage return (\r) without newline to overwrite lines. Since Rust's stdout is line-buffered, the output was accumulating in the buffer and displaying in choppy bursts. Add an explicit flush after print!() so output appears immediately. Co-Authored-By: Claude Opus 4.5 <[email protected]>
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Summary
stdoutflush afterprint!()inr_write_console_exso that R output using\rwithout newline (e.g., progress bars frompak::pak()) is displayed immediately instead of accumulating in the buffer and appearing in choppy bursts.Test plan
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