[xml2rfc] shorter refs to i-ds

[[e-mail] (Randy Bush)]

> A maybe simpler suggestion:  if the reference tag is longer than some 
> length (say 12-16 chars), wrap the following text to a new line?
> 
>     [I-D.ietf-ipngwg-addr-arch-v3]
>                     Gupta, M. and S. Deering, "IP Version
>                     6 Addressing Architecture", draft-
>                     ietf-ipngwg-addr-arch-v3-11 (work in
>                     progress), October 2002.
> 
>     [RFC2434]       Narten, T. and H. Alvestrand,
>                     "Guidelines for Writing an IANA
>                     Considerations Section in RFCs", BCP
>                     26, RFC 2434, October 1998.

works for me

> (I'm guessing that most I-D refs will become RFCs in the lifetime of a 
> draft, so any problem sort-of dissipates.)

while this is true for normative references, it need not be the
case for informative ones.

randy