hide sensitive data in STDOUT

cli/src/lib.rs

@@ -256,7 +256,7 @@ pub fn attempt_recover_seed(password: Option<String>) {
     };
 
     match LightClient::attempt_recover_seed(&config, password) {
-        Ok(seed) => println!("Recovered seed: '{}'", seed),
+        Ok(_seed) => println!("Recovered seed "),
         Err(e)   => eprintln!("Failed to recover seed. Error: {}", e)
     };
 }