Debug in _check_rbl_addresses

[Kevin A. McGrail]

Anyone know why this dbg was disabled?  I found it useful and thought 
perhaps it should be restored but maybe it's too much output?

===================================================================
--- lib/Mail/SpamAssassin/Plugin/DNSEval.pm     (revision 1562570)
+++ lib/Mail/SpamAssassin/Plugin/DNSEval.pm     (working copy)
@@ -370,7 +370,7 @@
   dbg("dns: _check_rbl_addresses RBL $rbl_server, set $set");
   for my $host (keys %hosts) {
-    #dbg("dns: checking [$host] / $rule / $set / $rbl_server");
+    dbg("dns: checking [$host] / $rule / $set / $rbl_server");
     $pms->do_rbl_lookup($rule, $set, 'A', "$host.$rbl_server");
   }
 }