Printing directory server on start

src/main.rs

@@ -36,7 +36,7 @@ fn main() {
                     Arg::with_name("directory")
                         .long("directory")
                         .help("Address of the directory server the node is sending presence and metrics to")
-                        .takes_value(false),
+                        .takes_value(true),
                 ),
         )
         .get_matches();

src/node/runner.rs

@@ -13,7 +13,7 @@ pub fn start(matches: &ArgMatches) {
 
     let config = new_config(matches);
     println!("Public key: {}", config.public_key_string());
-
+    println!("Directory server: {}", config.directory_server);
     println!(
         "Listening for incoming packets on {}",
         config.socket_address