gpg: Print a warning on Tor problems.
* dirmngr/ks-engine-hkp.c (tor_not_running_p): New. (map_host): Call that to print a warning. (handle_send_request_error): Ditto and avoid marking the host dead. Also print a tor_config_problem warning. Add arg CTRL; adjust callers to pass that new arg. * g10/call-dirmngr.c (ks_status_cb): Detect and print the new warnings.
- Signed-off-by: Werner Koch <wk@gnupg.org>