Improve formatting of operator<< chains.

Before:
  llvm::outs() << "aaaaaaaaaaaaaaaa: " << aaaaaaaaaaaaaaaa << "aaaaaaaaaaaaaaaa: "
               << aaaaaaaaaaaaaaaa << "aaaaaaaaaaaaaaaa: " << aaaaaaaaaaaaaaaa;

After:
  llvm::outs() << "aaaaaaaaaaaaaaaa: " << aaaaaaaaaaaaaaaa
               << "aaaaaaaaaaaaaaaa: " << aaaaaaaaaaaaaaaa
               << "aaaaaaaaaaaaaaaa: " << aaaaaaaaaaaaaaaa;

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@186320 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed