clean up the code to determine if dns_rdata_freestruct() needs to be called
clean up the code to determine if dns_rdata_freestruct() needs to be called

pecharmin/bind9,pecharmin/bind9,pecharmin/bind9,each/bind9-collab,each/bind9-collab,pecharmin/bind9,each/bind9-collab,pecharmin/bind9,each/bind9-collab,each/bind9-collab,each/bind9-collab,pecharmin/bind9