Add MSVC boilerplate macro for ignoring format nonliteral

Author: nohlson

Include/pyport.h

@@ -302,6 +302,7 @@ extern "C" {
 #elif defined(_MSC_VER)
 #define _Py_COMP_DIAG_PUSH __pragma(warning(push))
 #define _Py_COMP_DIAG_IGNORE_DEPR_DECLS __pragma(warning(disable: 4996))
+#define _Py_COMP_DIAG_IGNORE_DEPR_DECLS
 #define _Py_COMP_DIAG_POP __pragma(warning(pop))
 #else
 #define _Py_COMP_DIAG_PUSH