Run gofmt on doctl's codebase

[bentranter]

Overview

Right now, Go Report Card reports that we have so gofmt failures in our codebase.

Typically, these can fixed by running gofmt -s -w ./ from the root of the project.

How to fix it

1. Clone this repo.
2. If you haven't already, install Go through their official installer.
3. From the root of this project, run gofmt -s -w ./. The -s flag is short for "simplify", and will make some changes to make the code simpler. The -w flag is short for "write", which means that the changes will be written to disk instead of shown in stdout.
4. Open a pull request to this repo with your changes. If you want, mention this issue in your pull request by writing something like, "Closes #866" which will close this issue upon being merged.

[bentranter]

Closed in #868