Play sound when washing off banner

mods/ITEMS/mcl_banners/init.lua

@@ -169,6 +169,9 @@ for colorid, colortab in pairs(mcl_banners.colors) do
 						-- (It is possible to waste water if the banner had 0 layers.)
 						minetest.set_node(pointed_thing.under, {name=new_node})
 
+						-- Play sound (from mcl_potions mod)
+						minetest.sound_play("mcl_potions_bottle_pour", {pos=pointed_thing.under, gain=0.5, max_hear_range=16})
+
 						return itemstack
 					end
 				end