Per surrounding style, use stdarg.h instead of cstdio, etc.

llvm-svn: 105711
diff --git a/lldb/source/API/SBError.cpp b/lldb/source/API/SBError.cpp
index f2c6b58..0e00d58 100644
--- a/lldb/source/API/SBError.cpp
+++ b/lldb/source/API/SBError.cpp
@@ -9,7 +9,7 @@
 
 #include "lldb/API/SBError.h"
 #include "lldb/Core/Error.h"
-#include <cstdarg>
+#include <stdarg.h>
 
 using namespace lldb;
 using namespace lldb_private;