Slicker should try to fix up whitespace

[csilvers]

This is totally tilting at windmills but it might be fun to try. Right now the hardest part of moving a file is fixing up all the lint issues. There's no way we can fix them all automatically but there are probably some we could do, perhaps similarly to https://phabricator.khanacademy.org/D39938 (although we can be more aggressive as there is no need to limit changes to what git blame -w can ignore – we've already touched these lines).

[benjaminjkraft]

One option would be to call out to autopep8 for this part; it has an option to only operate on certain lines.