Fix some refactos for iostream changes (in -Asserts mode).
 - The world needs better C++ refactoring tools, can I get an Amen!?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79843 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/ScheduleDAGPrinter.cpp b/lib/CodeGen/ScheduleDAGPrinter.cpp
index ae358ec..95ad05e 100644
--- a/lib/CodeGen/ScheduleDAGPrinter.cpp
+++ b/lib/CodeGen/ScheduleDAGPrinter.cpp
@@ -93,7 +93,7 @@
     ViewGraph(this, "dag." + MF.getFunction()->getNameStr(), false,
               "Scheduling-Units Graph for " + MF.getFunction()->getNameStr());
 #else
-  cerr << "ScheduleDAG::viewGraph is only available in debug builds on "
-       << "systems with Graphviz or gv!\n";
+  errs() << "ScheduleDAG::viewGraph is only available in debug builds on "
+         << "systems with Graphviz or gv!\n";
 #endif  // NDEBUG
 }