-The original implementation did not support a list of domains. Adding the list
-feature is compatible, except in one case: when PTR records are being looked up
-for a single IPv6 address. Fortunately, we can hack in a compatibility feature
-here: If the type is PTR and no list separator is specified, and the entire
-remaining string is valid as an IP address, set an impossible separator so that
+The original implementation did not support a list of domains. Adding the list
+feature is compatible, except in one case: when PTR records are being looked up
+for a single IPv6 address. Fortunately, we can hack in a compatibility feature
+here: If the type is PTR and no list separator is specified, and the entire
+remaining string is valid as an IP address, set an impossible separator so that