Remove the trailing whitespace of formatted lines.
So far, clang-format has always assumed the whitespace belonging to the
subsequent token. This has the negative side-effect that when
clang-format formats a line, it does not remove its trailing whitespace,
as it belongs to the next token.
Thus, this patch fixes most of llvm.org/PR15062.
We are not zapping a file's trailing whitespace so far, as this does not
belong to any token we see during formatting. We need to fix this in a
subsequent patch.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175152
91177308-0d34-0410-b5e6-
96231b3b80d8