old_contents: 'use strict';
  
  module.exports.DEFAULT_PORT = 8211;
  module.exports.CONNECT_BACKOFF_MULT = 50;
  module.exports.EOL = '\0';
  module.exports.TELL = 'TELL';
  module.exports.SHOUT = 'SHOUT';
  module.exports.IDENT = 'IDENT';
  module.exports.ACK = 'ACK';
  module.exports.CLOSE = 'CLOSE';
  module.exports.LEAVE = 'LEAVE';
  
new_contents: 'use strict';
  
  module.exports.DEFAULT_PORT = 8211;
  module.exports.CONNECT_BACKOFF_MULT = 50;
  
  module.exports.EOL = '\0';
  
  module.exports.TELL = 'TELL';
  module.exports.SHOUT = 'SHOUT';
  module.exports.IDENT = 'IDENT';
  module.exports.ACK = 'ACK';
  module.exports.CLOSE = 'CLOSE';
  module.exports.LEAVE = 'LEAVE';
  module.exports.PING = 'PING';
  
subject: Add PING to constants