Driver: Print version on stderr to match [gc]cc.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67178 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
index 4b3596d..1e4cd7f 100644
--- a/lib/Driver/Driver.cpp
+++ b/lib/Driver/Driver.cpp
@@ -216,7 +216,7 @@
 
   // FIXME: The following handlers should use a callback mechanism, we
   // don't know what the client would like to do.
-  llvm::outs() << "ccc version 1.0" << "\n";
+  llvm::errs() << "ccc version 1.0" << "\n";
 }
 
 bool Driver::HandleImmediateArgs(const Compilation &C) {