Fix whitespace

Whitespace fix.

I recommend adding this somewhere in your config. It will automatically detabify and remove the trailing whitespace. It's very handy when working on open-source projects since it fixes trivial merge conflicts where someone adds a space or tab somewhere.

    (add-hook 'before-save-hook 'cleanup-buffer-safe)
    (defun cleanup-buffer-safe ()
      "Perform a bunch of safe operations on the whitespace content of a buffer.
    Does not indent buffer, because it is used for a before-save-hook, and that
    might be bad."
      (interactive)
      (untabify-buffer)
      (delete-trailing-whitespace)
      (set-buffer-file-coding-system 'utf-8))