updated for version 7.3.603

Problem:    It is possible to add replace builtin functions by calling
            extend() on g:.
Solution:   Add a flag to a dict to indicate it is a scope.  Check for
            existing functions. (ZyX)

src/version.c

@@ -714,6 +714,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    603,
 /**/
     602,
 /**/