Implement LWG #2344: quoted()'s interaction with padding is unclear. I think that anyone using quoted with padding is really confused, but it should work the way the rest of iostreams works.


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@203290 91177308-0d34-0410-b5e6-96231b3b80d8