title: showing differences within a line in diff output
body: <p><a href="https://stackoverflow.com/questions/1265949/multiple-changes-in-one-line-with-diff-tool/1266114#1266114">This StackOverflow answer</a> has an image of KDiff3 highlighting intra-line differences.  Does someone know of a tool which can show the same (ex, via color) on the command line?</p>
  
  <p>Another way to think of this is wanting to diff each difference in a patch file.</p>