code: func BuildConnectionStringWithChroot(nodes []string, chroot string) string {
  	return fmt.Sprintf("%s%s", strings.Join(nodes, ","), chroot)
  }
docs: // ConnectionStringWithChroot builds a Zookeeper connection string for a list
  // of nodes and a chroot. The chroot should start with "/".
  // Returns a string like "zk1:2181,zk2:2181,zk3:2181/chroot"