Make help docs platform specific (#40194)

No need to clutter the `--help` docs with default directories for
platforms other than the current one.

Release Notes:

- N/A

Co-authored-by: David Kleingeld <davidsk@zed.dev>
6d8d2e2989Julia Ryan committed on 10/15/2025, 7:35:50 AM· committed by GitHubparent877790a
1 file changedLine totals unavailable