search for: r119515

Hi Chris, I was reading the LLVM coding standards and noticed some typos & formatting nits. Please see http://codereview.appspot.com/3127041 for my proposed fix. Most of changes are local and cosmetic. The only bigger change I made is to group the sections about iostream and raw_ostream together, as they are logically related. I had to edit the text a little bit after the move, in order