* libinet6/if_nametoindex.c: conform to RFC2553 (ENXIO if the interface   is not found).
* libinet6/if_nametoindex.c: conform to RFC2553 (ENXIO if the interface
  is not found).

MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame