[STD30]    Internet Standard 30,
              <https://www.rfc-editor.org/info/std30>.
              At the time of writing, this STD comprises the following:

              Postel, J. and J. Reynolds, "Telnet Status Option",
              STD 30, RFC 859, DOI 10.17487/RFC0859, May 1983,
              <https://www.rfc-editor.org/info/rfc859>.