Fix x86 repl_r_a_args_n_a; fetch arity without offset from descriptor

istartup.s

@@ -1492,7 +1492,7 @@ push_r_a_elements:
 
 repl_r_a_args_n_a:
 	movl	(a0),a1
-	movzwl	2(a1),d0
+	movzwl	(a1),d0
 	test	d0,d0
 	je	repl_r_a_args_n_a_0
 	cmp	$2,d0

[John van Groningen]

Thanks