C# wrapped terminal/console command

WrappedConsoleCommand.cs

using System;
using System.Diagnostics;
using System.Text;

namespace Savaged.ConsoleWrapping
{
    class Program
    {
        static void Main(string[] args)
        {
            var app = new App();
            app.Run();
            Console.WriteLine(app.Output);
            Console.ReadLine();
        }
    }

    class App
    {
        private readonly StringBuilder _out;

        public App()
        {
            _out = new StringBuilder();
        }

        public string Output => _out.ToString();

        public void Run()
        {
            using (var p = new Process())
            {
                p.StartInfo = new ProcessStartInfo
                {
                    FileName = "C:\\Program Files (x86)\\GnuPG\\bin\\gpg.exe",
                    Arguments = "--help",
                    UseShellExecute = false,
                    RedirectStandardOutput = true,
                    RedirectStandardError = true
                };
                p.OutputDataReceived += (s, e) => AddOutput(e);
                p.ErrorDataReceived += (s, e) => AddOutput(e);

                p.Start();
                p.BeginOutputReadLine();
                p.BeginErrorReadLine();
                p.WaitForExit();
            }
        }

        private void AddOutput(DataReceivedEventArgs e)
        {
            lock (_out)
            {
                _out.Append(e.Data);
                _out.Append(Environment.NewLine);
            }
        }

    }
}