Turns out there is a simpler way of getting a set difference in bash than parsing diff output.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172420 91177308-0d34-0410-b5e6-96231b3b80d8
Put simple preprocessor directives on a single line.

Before: #define A  \
          A
After:  #define A A

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172423 91177308-0d34-0410-b5e6-96231b3b80d8
Fix bug that would lead to joining preprocessor directives.

Before: #include "a.h" #include "b.h"
After:  #include "a.h"
        #include "b.h"

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172424 91177308-0d34-0410-b5e6-96231b3b80d8