patch 7.4.1216

Problem:    Still using HAVE_STDARG_H.
Solution:   Assume it's always defined.

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1216,
 /**/
     1215,
 /**/