dns_rbt_find* is when no options are passed. Add DNS_RBTFIND_NOPREDECESSOR to specify that the predecessor searching code of dns_rbt_findnode should be skipped. Much comment cleanup w.r.t. DNS_RBTFIND_* options.
dns_rbt_find* is when no options are passed. Add DNS_RBTFIND_NOPREDECESSOR to specify that the predecessor searching code of dns_rbt_findnode should be skipped. Much comment cleanup w.r.t. DNS_RBTFIND_* options.