If updating zonefile failed, print the 'nsupdate' command on the terminal console.

create_opendkim_key.sh

@@ -1213,6 +1213,18 @@ EOF
       echo_ok
    else
       echo_failed
+      cat <<END
+
+cat <<EOF | nsupdate -v
+server $dns_dkim_zone_master_server
+zone $update_zone
+key ${key_algo}:$key_name $key_secret
+update delete ${time_stamp}.${update_zone}.
+update add ${time_stamp}.${update_zone}. $ttl IN TXT $(cat ${key_dir}/${time_stamp}.nsupdate)
+send
+EOF
+END
+
       error "$(cat $log_file)"
       delete_generated_files
       clean_up 1