examples: change // to blank line in 2048.v too, after 793b66d

examples/2048/2048.v

@@ -18,7 +18,7 @@ mut:
 	state       GameState  = .play
 	tile_format TileFormat = .normal
 	moves       int
-	//
+
 	is_ai_mode bool
 	ai_fpm     u64 = 8
 }