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.
I'm having difficulty being sold on a tool on the basis of "it's better than others" (w/o evidence) and "I don't think other tools can do this" and "we'll have to live with some problems".

I don't have any inherent negativity towards the tool, I'm just not liking the approach you're taking to get the project to adopt it. I'll do research of my own to see what we're getting into and come back with what I find. I'm hoping it'll very well be "this is exactly why it's better, this is what we'll miss out on, let's use this" and that'll be that.