Darren Schroeder bbe694a622
fix signature display in help commands (#7802)
# Description

This PR fixes the signature display when running `help commands`. Before
this PR, there were leading spaces in the signatures column. Now,
they're left aligned for a cleaner look.

Before:

![image](https://user-images.githubusercontent.com/343840/213711847-368fba0d-c902-47e6-b777-54de978b1ce3.png)

After:

![image](https://user-images.githubusercontent.com/343840/213711551-c5eb29c9-1d47-444b-86a1-8e14711e9771.png)


# User-Facing Changes

_(List of all changes that impact the user experience here. This helps
us keep track of breaking changes.)_

# Tests + Formatting

Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2023-01-20 07:58:54 -06:00
..
2022-04-20 08:50:14 -05:00
2023-01-15 21:30:39 -06:00