Add newline at the end of file, to silence compiler warning.

llvm-svn: 57818
diff --git a/clang/Driver/RewriteTest.cpp b/clang/Driver/RewriteTest.cpp
index 5af4d0e..1d0c6f9 100644
--- a/clang/Driver/RewriteTest.cpp
+++ b/clang/Driver/RewriteTest.cpp
@@ -37,4 +37,4 @@
   for (TokenRewriter::token_iterator I = Rewriter.token_begin(),
        E = Rewriter.token_end(); I != E; ++I)
     std::cout << PP.getSpelling(*I);
-}
\ No newline at end of file
+}