## Summary
- Fixes `bun completions` crashing with `BrokenPipe` error when piped to
commands that close stdout early (e.g., `bun completions | true`)
- The fix catches `error.BrokenPipe` and exits cleanly with status 0
instead of propagating the error
## Test plan
- [x] Added regression test that pipes `bun completions` to `true` and
verifies no BrokenPipe error occurs
- [x] Verified test fails with system Bun and passes with fixed build
Fixes#2977🤖 Generated with [Claude Code](https://claude.com/claude-code)
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Co-authored-by: Claude Bot <claude-bot@bun.sh>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
Co-authored-by: Jarred Sumner <jarred@jarredsumner.com>
