Replace deprecated invsize[] with size[]

SmallJoker

2018-07-19 fb93388f06fe87ee75aaaf04cf6edcf01a26d981

 wrench/support.lua

@@ -66,6 +66,8 @@
end

function wrench:register_node(name, def)
   self.registered_nodes[name] = def
   if minetest.registered_nodes[name] then
       self.registered_nodes[name] = def
   end
end