Travis: Indentation / list fixes (#1254)

Fixes the tools/indentation.awk script to not demand a comma at the end of perfectly valid comments.
Makes it report unnecessary commas in lists.
Readds it to the Travis build list.

code/modules/paperwork/faxmachine.dm

@@ -187,7 +187,7 @@ var/list/admin_departments = list("[boss_name]", "Sol Government", "Supply")
 
 /obj/machinery/photocopier/faxmachine/process()
 	.=..()
-	/var/static/ui_update_delay = 0
+	var/static/ui_update_delay = 0
 
 	var/current_time = world.time
 	if (current_time > sendtime + sendcooldown)

code/modules/paperwork/papershredder.dm

@@ -13,7 +13,7 @@
 		/obj/item/weapon/paper = 1,
 		/obj/item/weapon/newspaper = 3,
 		/obj/item/weapon/card/id = 3,
-		/obj/item/weapon/paper_bundle = 3,
+		/obj/item/weapon/paper_bundle = 3
 		)
 
 /obj/machinery/papershredder/attackby(var/obj/item/W, var/mob/user)