Use fmt on title screen.

chameleonic.p8

@@ -302,7 +302,7 @@ function title:draw()
  print("pyrex",32,73,7)
  print("[nyeogmi]",62,73,7)
  print("kistaro",32,79,7)
- local lvlstr = "⬅️ "..start_level.." ➡️"
+ local lvlstr = fmt("⬅️ %v ➡️",start_level)
  print(lvlstr,50,91,1)
  print(lvlstr,51,90,blinkcol) 
 end