Clean up imports ansible utils

Sorry, the contributing guide seems to sort of discourage changes for PEP8, whitespace, etc. but I couldn't help myself. It's just so much prettier now. And the old version had `import sys` twice so clearly having stuff be neat and tidy has a benefit. :smile: 

If you're worried about this breaking attribution (I guess you mean `git blame`?), then I might suggest that you take my diff and commit it yourself. I'm totally OK with that.