Feature Request: Add rule for hyphens similar to yamllint

[dawidmalina]

Here's the hyphens rule in yamllint: https://yamllint.readthedocs.io/en/stable/rules.html#module-yamllint.rules.hyphens

the following code snippet would fail:

/path/to/file1:
  file.managed:
    -  contents: This is line 1

the following code snippet would fail:

/path/to/file1:
  file.managed:
    -contents: This is line 1

the following code snippet would pass:

/path/to/file1:
  file.managed:
    - contents: This is line 1

[dawidmalina]

@roaldnefs I can work on this

[dawidmalina]

@roaldnefs there was a dedicated pull request to covert that but it was closed? Are you interested in this feature request?

[roaldnefs]

Closing this issue in favour of #240.