Updated list_insert invocations

 %{
 /* GNU Mailutils -- a suite of utilities for electronic mail
-   Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
 
    GNU Mailutils is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -274,7 +274,7 @@ _insert_list (list_t list, void *prev, list_t new_list)
       void *item;
       
       iterator_current (itr, &item);
-      list_insert (list, prev, item);
+      list_insert (list, prev, item, 0);
       prev = item;
     }
   iterator_destroy (&itr);