Improve linter diagnostic output

[Elizafox]

Melange Pull Request Template

Functional Changes

• This change can build all of Wolfi without errors (describe results in notes)

Linter

• The new check is clean across Wolfi
• The new check is opt-in or a warning

Notes:

This is a minor formatting fix to the linter's output. This makes it much more easy to read and interpret, especially when linting multiple APK's at once.