update id of wool stairs

init.lua

@@ -33,7 +33,7 @@ minetest.register_on_joinplayer(function(player)
      --return ""
      --   else
            -- core.chat_send_all("found nothing :(, anyway...")
-    --[[end
+    end
         player:set_properties({
             visual = "mesh",
             textures = {texture..".png"},

stairs.lua

@@ -7,7 +7,7 @@ for _,name in ipairs({"red", "green", "white", "black", "blue", "brown", "cyan",
         return
     end
     local desc = tmp.description
-    stairs.register_stair_and_slab("wool_"..name, nodename,
+    stairs.register_stair_and_slab(name, nodename,
     tmp.groups,
     {"wool_"..name..".png"},
     desc.." Stair",