Add some extra style checks to jshint and fix them in the files

It's excluded because it doesn't follow the "space after comma" style the rest of the non-data files follows.

Also, it's not evaluated using bash, but with `minipath` (https://github.com/jscs-dev/node-jscs/blob/master/lib/options/exclude-files.js).
And even if it were slow, it's done infrequently enough that it doesn't matter.