There are a couple worthwhile things in here but most of this just looks like messing with the indentation and such. Overall tabs are actually used for indentation, though it's not written anywhere.
You should try to write shorter patches that don't mess with everything in the file. It's less for the maintainers to read through and less for you to write. Then we can get more patches through in less time and you can write more. :D Win win!
