patch 8.1.0469: too often indexing in qf_lists[]

Problem:    Too often indexing in qf_lists[].
Solution:   Use a qf_list_T pointer. (Yegappan Lakshmanan)

src/version.c

@@ -792,6 +792,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    469,
 /**/
     468,
 /**/