读取带空格的FTP DirectoryList时，流读取器抛出ObjectDisposed异常

using System;
using System.IO;
using System.Net;
using System.Text;

class Program
{
    static void Main()
    {
        string ftpUrl = "ftp://example.com/directory/";
        string username = "user";
        string password = "pass";

        FtpWebRequest request = (FtpWebRequest)WebRequest.Create(ftpUrl);
        request.Method = WebRequestMethods.Ftp.ListDirectory;
        request.Credentials = new NetworkCredential(username, password);

        try
        {
            using (FtpWebResponse response = (FtpWebResponse)request.GetResponse())
            using (Stream responseStream = response.GetResponseStream())
            using (StreamReader reader = new StreamReader(responseStream, Encoding.UTF8))
            {
                string line;
                while ((line = reader.ReadLine()) != null)
                {
                    Console.WriteLine(line);
                }
            }
        }
        catch (ObjectDisposedException ex)
        {
            Console.WriteLine("流已被关闭: " + ex.Message);
        }
        catch (Exception ex)
        {
            Console.WriteLine("发生错误: " + ex.Message);
        }
    }
}