Screwdriver fix

screwdriver.lua

@@ -21,12 +21,14 @@
 		    minetest.env:set_node(pos,node)
                     meta = minetest.env:get_meta(pos)
                     meta:from_table(meta0)
-                    -- appropriatly set the wear of the screwdriver
-                   -- m = itemstack:get_wear()
-                   -- if m == 0 then m = 65535 end
-                   -- m = m-6554
-                   -- return {wear=m}
-            end,
+		    local item=itemstack:to_table()
+		    local item_wear=tonumber((item["wear"])) 
+		    item_wear=item_wear+819
+		    if item_wear>65535 then itemstack:clear() return itemstack end
+		    item["wear"]=tostring(item_wear)
+		    itemstack:replace(item)
+		    return itemstack
+	    end,
     })
      
     minetest.register_craft({