Whitespace changes by clang-format.

These files are the ones with the least number of changes when running
clang-format over them and only the less controversial changes are
included, with a preference for having stay the same where things are
likely to be more controversial.
Even though there are some formatting options that clang-format doesn't make and there are some things that are hard to tune the existing settings if you want things to 'look right', I agree with the philosophy. It's designed to be a tool where you put the settings in a file and no human worries about manually formatting again.

With that as the philosophy, I'm willing to take a few warts along the way in the name of consistency.