Fix an editor goof in r171738 that Bill spotted. He may even have a test
case, but looking at the diff this was an obviously unintended change.

Thanks for the careful review Bill! =]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172336 91177308-0d34-0410-b5e6-96231b3b80d8