             |> String.upcase
 
           padding = String.duplicate("-",
-            74 - String.length(pretty_error_type) - String.length(file_path))
+            max(0, 74 - String.length(pretty_error_type) - String.length(file_path)))
 
           errors
           |> Enum.each(fn error ->

            |> String.upcase

          padding = String.duplicate("-",
            74 - String.length(pretty_error_type) - String.length(file_path))

          errors
          |> Enum.each(fn error ->

            |> String.downcase

          padding = String.duplicate("-",
            max(0, 74 - String.length(pretty_warning_type) - String.length(file_path)))

          warnings
          |> Enum.each(fn warning ->
