Fix build of clang with gcc-4.4: #include <cstdio> was missing.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79916 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/FixItRewriter.cpp b/lib/Frontend/FixItRewriter.cpp
index 030efd4..98e2503 100644
--- a/lib/Frontend/FixItRewriter.cpp
+++ b/lib/Frontend/FixItRewriter.cpp
@@ -19,6 +19,8 @@
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/System/Path.h"
 #include "llvm/ADT/OwningPtr.h"
+#include <cstdio>
+
 using namespace clang;
 
 FixItRewriter::FixItRewriter(Diagnostic &Diags, SourceManager &SourceMgr,