Issue #28999: Use Py_RETURN_NONE, Py_RETURN_TRUE and Py_RETURN_FALSE wherever
possible.  Patch is writen with Coccinelle.
diff --git a/Python/modsupport.c b/Python/modsupport.c
index 01b5dc9..e9e025b 100644
--- a/Python/modsupport.c
+++ b/Python/modsupport.c
@@ -514,8 +514,7 @@
     if (n < 0)
         return NULL;
     if (n == 0) {
-        Py_INCREF(Py_None);
-        return Py_None;
+        Py_RETURN_NONE;
     }
     va_copy(lva, va);
     if (n == 1) {