Fixes cardboard tube duping (#1854)

code/modules/recycling/sortingmachinery.dm

@@ -5,7 +5,7 @@
 	icon_state = "deliverycloset"
 	density = 1
 	mouse_drag_pointer = MOUSE_ACTIVE_POINTER
-	var/giftwrapped = 0
+	var/giftwrapped = FALSE
 	var/sortTag = 0
 
 /obj/structure/bigDelivery/attack_hand(mob/user)
@@ -44,7 +44,7 @@
 		var/obj/item/stack/wrapping_paper/WP = W
 		if(WP.use(3))
 			user.visible_message("[user] wraps the package in festive paper!")
-			giftwrapped = 1
+			giftwrapped = TRUE
 			icon_state = "gift[icon_state]"
 		else
 			to_chat(user, "<span class='warning'>You need more paper!</span>")