Request: Remove trailing white spaces

[SimplyBob]

First, thanks for making and maintaining this. This largely matches the "pretty" format I was looking for.

One problem I've come across is trailing white spaces behind commas at the end of lines. As a solution, I've been cleaning it up with sed....which is a little hacky, but I've been unable to modify the code the way I'd like it. The reason this is a problem is because at work we have git hooks in place that flag on formatting issues - and this is one.

sed -i "" 's/[[:space:]]*$//' file.json

If you could assist, that would be appreciated.

Thanks,
James