* Promise not to change fds in adns_beforepoll (if now is specified).
* Improved textual error string for _s_prohibitedcname.
* New comment in adns_processany and return 0 (not r which is 0).
* Promise not to change fds in adns_beforepoll (if now is specified).
* Improved textual error string for _s_prohibitedcname.
* New comment in adns_processany and return 0 (not r which is 0).