* libinet6/getnameinfo.c: use EAI_xx for error code.  rfc2553bis   suggests it.
* libinet6/getnameinfo.c: use EAI_xx for error code.  rfc2553bis
  suggests it.

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