The --header CLI flag implementation was already complete in the codebase.
This note documents the implementation and verifies all acceptance criteria.
Acceptance criteria verified:
- Single header with URL: PASS
- Multiple headers: PASS
- Managed header rejection: PASS
- CRLF injection protection: PASS
- No colon error: PASS
- Local file silent ignore: PASS
No new code was required - the feature was already fully implemented
in main.rs, header.rs, source/mod.rs, and http_range.rs.
