Fix bug in read_incoming: InterfaceMismatch

bootstrap/mini_modify.alc

@@ -235,7 +235,7 @@ String function cmd_read_incoming(model : Element, element_name : String, type :
 	String result
 	Element elems
 
-	result = ""
+	result = "Success: "
 	if (dict_in(model["model"], element_name)):
 		elems = allIncomingAssociationInstances(model, element_name, type)
 		while (read_nr_out(elems) > 0):