Simplified the any_key_with_countdown and fixed the linefeed issue (#1080)
Simplified the any_key_with_countdown and fixed the linefeed issue (#1080)


kontena/kontena,kontena/kontena,kontena/kontena,kontena/kontena,mikkopiu/kontena,mikkopiu/kontena,mikkopiu/kontena,mikkopiu/kontena