Return an empty object early when nothing to prompt (#1032)
Return an empty object early when nothing to prompt (#1032)

* Return an empty object early when nothing to prompt

So that the `console.log()` a few lines down does
not get invoked

* Use `Object.keys()` to iterate over the answers

zeit/now-cli,zeit/now-cli,zeit/now-cli,zeit/now-cli,zeit/now-cli,zeit/now-cli,zeit/now-cli