* Do not invoke __autosys indirectly from __procdgram (result: coredump
usually in memmove, unless adns_if_noautosys was used).
* Do not scramble innards when a query on the output queue is cancelled.
+ * Do not close tcp socket twice.
* Mailboxes containing spaces in their names are quoted.
* adns_rr_hostaddr naddrs is -1 on temporary failure (as documented).
* Reject TXT RRs with no strings.