patch 8.1.1583: set_ref_in_list() only sets ref in items

Problem:    Set_ref_in_list() only sets ref in items.
Solution:   Rename to set_ref_in_list_items() to avoid confusion.
diff --git a/src/version.c b/src/version.c
index 2af2912..9fec3b8 100644
--- a/src/version.c
+++ b/src/version.c
@@ -778,6 +778,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1583,
+/**/
     1582,
 /**/
     1581,