Fix id -A when the subject has an extended subject token associated with them (for example when they have logged in from an ip6 source).
Fix id -A when the subject has an extended subject token associated with
them (for example when they have logged in from an ip6 source).

- Stick with the initial call to getaudit(2), if it returns E2BIG, use
  getaudit_addr(2) instead and set the "extended" flag to indicate that
  we the calling credential has an extended subject state.
- Additionally, add the printing of the machine/at_addr (the ip/ip6
  addresses)

MFC after:	1 week
Obtained from:	TrustedBSD Project

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase