Remove unnecessary uses of <iostream>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101338 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/fpcmp/fpcmp.cpp b/utils/fpcmp/fpcmp.cpp
index 66d8ab1..5f6b5e8 100644
--- a/utils/fpcmp/fpcmp.cpp
+++ b/utils/fpcmp/fpcmp.cpp
@@ -14,7 +14,7 @@
 
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/FileUtilities.h"
-#include <iostream>
+#include "llvm/Support/raw_ostream.h"
 using namespace llvm;
 
 namespace {
@@ -37,7 +37,7 @@
                                   sys::PathWithStatus(File2),
                                   AbsTolerance, RelTolerance, &ErrorMsg);
   if (!ErrorMsg.empty())
-    std::cerr << argv[0] << ": " << ErrorMsg << "\n";
+    errs() << argv[0] << ": " << ErrorMsg << "\n";
   return DF;
 }