sm: Print diagnostic about CRL problems due to Tor mode.
* dirmngr/crlfetch.c (crl_fetch, crl_fetch_default) (ca_cert_fetch, start_cert_fetch): Factor Tor error out to ... (no_crl_due_to_tor): new. Print status note. * dirmngr/ks-engine-ldap.c (ks_ldap_get) (ks_ldap_search, ks_ldap_put): Factor Tor error out to ... (no_ldap_due_to_tor): new. Print status note. * dirmngr/ocsp.c (do_ocsp_request): Print status note. * sm/misc.c (gpgsm_print_further_info): New. * sm/call-dirmngr.c (warning_and_note_printer): New. (isvalid_status_cb): Call it. (lookup_status_cb): Ditto. (run_command_status_cb): Ditto. * common/asshelp2.c (vprint_assuan_status): Strip a possible trailing LF.