[users] Small hack.

[David Bryan]

This fixes the issue of not being an authoritative server for a domain.
It's a bit of a hack, but it works for the moment.
-bash-3.00$ diff -p functions.php functions-old.php
613c613
<         $s =  
".".$domain.":".$soa['tldhost']."::".$soa['ttl']."\n"."Z".$domain.":".$s 
oa['tldhost'].":".$soa['tldemail']."::".$soa['refresh'].":".$soa['retry' 
].":".$soa['expire'].":".$soa['minimum'].":".$soa['ttl']."\n";
---
>         $s =  
"Z".$domain.":".$soa['tldhost'].":".$soa['tldemail']."::".$soa['refresh' 
].":".$soa['retry'].":".$soa['expire'].":".$soa['minimum'].":".$soa['ttl 
']."\n";

-bash-3.00$ diff -cp functions.php functions-old.php
*** functions.php       Wed Apr 13 22:45:11 2005
--- functions-old.php   Wed Apr 13 21:53:05 2005
*************** function build_data_line($row,$domain) {
*** 610,616 ****
          $s = "C".$row['host'].":".$row['val'].":".$row['ttl']."\n";
      } else if($row['type'] == 'S') {
          $soa = parse_soa($row);
!         $s =  
".".$domain."::".$soa['tldhost'].":".$soa['ttl']."\n"."Z".$domain.":".$s 
oa['tldhost'].":".$soa['tldemail']."::".$soa['refresh'].":".$soa['retry' 
].":".$soa['expire'].":".$soa['minimum'].":".$soa['ttl']."\n";
      } else if($row['type'] == 'V') {
          $s =  
":".$row['host'].": 
33:".encode_rdata('cccq',array($row['distance'],$row['weight'],$row['por 
t'],$row['val'])).":".$row['ttl']."\n";
      } else {
--- 610,616 ----
          $s = "C".$row['host'].":".$row['val'].":".$row['ttl']."\n";
      } else if($row['type'] == 'S') {
          $soa = parse_soa($row);
!         $s =  
"Z".$domain.":".$soa['tldhost'].":".$soa['tldemail']."::".$soa['refresh' 
].":".$soa['retry'].":".$soa['expire'].":".$soa['minimum'].":".$soa['ttl 
']."\n";
      } else if($row['type'] == 'V') {
          $s =  
":".$row['host'].": 
33:".encode_rdata('cccq',array($row['distance'],$row['weight'],$row['por 
t'],$row['val'])).":".$row['ttl']."\n";
      } else {