Output fewer newlines when validation is successful

[zeke]

⚠️ Very minor issue alert! ⚠️

The output below has a lot of extra newlines. I can see why those newlines would be helpful in cases where there are many errors per schema, but when there are no errors it looks a bit spacious:

> openapi validate openapi/*.yml



openapi/api.github.com.yml results. Errors: 0, warnings: 0
    

openapi/ghe-2.15.yml results. Errors: 0, warnings: 0


openapi/ghe-2.16.yml results. Errors: 0, warnings: 0


openapi/ghe-2.17.yml results. Errors: 0, warnings: 0


openapi/ghe-2.18.yml results. Errors: 0, warnings: 0
Total results. Errors: 0, warnings: 0

[knidarkness]

Thanks for feedback! This was resolved by #51, so I would close this issue.

[zeke]

Nice!