message: fix mint params error not return
diff: @@ -132,6 +132,7 @@ impl Command for AccountCommandMint {
  fn execute(&self, client: &mut ClientProxy, params: &[&str]) {
  if params.len() != 3 {
  println!("Invalid number of arguments for mint");
  + return;
  }
  println!(">> Minting coins");
  let is_blocking = blocking_cmd(params[0]);
  