amtoine 11666bc715
fix the tests involving a --help
The outputs of `each --help` and `cd --help` have obviously changed
in this PR.

i've simply run
```bash
>  cargo run
```
to drop into the new `nushell` and clipped the output of the new
- `each --help | lines | length` from
  `src/tests/test_engine.rs::help_works_with_missing_requirements`
- `cd --help | to html --html-color` from
  `crates/nu-command/tests/format_conversions/html.rs::test_cd_html_color_flag_dark_false`
- `cd --help | to html --no-color` from
  `crates/nu-command/tests/format_conversions/html.rs::test_no_color_flag`
2023-02-24 11:18:40 +01:00
..
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