This does a broad first pass on cleaning up a lot of the noise when
using pylint on these scripts. It mostly addresses issues of:
- Mixed tabs and spaces.
- Trailing whitespace.
- Semicolons where they aren't needed.
- Incorrect whitespace around () and [].
- Superfluous parentheses.
There will be subsequent patches with further changes that build
upon these.
I shouldn't have chopped an 's' from here.