code: function normalizeHost(host) {
  	if (!host) {
  		return host;
  	}
  
  	if (host[host.length - 1] === '.') {
  		host = host.substring(0, host.length - 1);
  	}
  
  	return host;
  }
docs: Hosts in mDNS are announced with a trailing dot, remove it
  
  @param {string} host
  @returns {string}