Use correct finish function when discovering SRV records
Use correct finish function when discovering SRV records

 * Missed during the move to using _msdcs SRV records i
   instead of SOA lookup

freedesktop-unofficial-mirror/realmd__realmd,freedesktop-unofficial-mirror/realmd__realmd,freedesktop-unofficial-mirror/realmd__realmd,freedesktop-unofficial-mirror/realmd__realmd