Fix some various stray trailing whitespace issues

[hostilefork]

Git was complaining that there were some stray trailing whitespace issues on some of the lines in the file. While ultimately a whitespace "rewrite" of Ren/C is planned so that the history always had correct indentation and tabs...these little gripes cause the version I run of git to get angry if I modify a line and then try to patch it back. So near term they need fixing.

While there's a lot of them, they're really just stray lines that made it in from some particular patcher's setup I guess.

Script found from SO:

 #!/bin/sh

  if git-rev-parse --verify HEAD >/dev/null 2>&1 ; then
      against=HEAD
  else
      # Initial commit: diff against an empty tree object
      against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
   fi      
   # Find files with trailing whitespace
   for FILE in `exec git diff-index --check --cached $against -- | sed '/^[+-]/d' | sed -r 's/:[0-9]+:.*//' | uniq` ; do
      # Fix them!
      sed -i 's/[[:space:]]*$//' "$FILE"
      git add "$FILE"
   done       
   exit