--- lisp/startup.el
+++ lisp/startup.el	2007-12-20 12:10:27.169138433 +0100
@@ -1829,6 +1829,9 @@ With a prefix argument, any user input h
                 ((equal argi "-no-splash")
                  (setq inhibit-startup-message t))
 
+                ((equal argi "-iconic")
+                 (setq inhibit-startup-message t))
+
                 ((member argi '("-f"	; what the manual claims
                                 "-funcall"
                                 "-e"))  ; what the source used to say