After seeing this module on CPAN, I am sorely tempted to write Acme::DNS::Correct::Corrected, which would apply the same algorithm as is used by the BIND patch. But ICBA.
Update: this isn't meant as criticism of Acme::DNS::Correct, BTW
Please note that not everyone runs their own DNS server. For those individuals, this is a very nice option since it seems you can start running it with little modification to the scripts that use Net::DNS::Resolver.