private string FormatFtpCommand(string command, string parameter)
{
StringBuilder stringBuilder = new StringBuilder(command.Length + ((parameter != null) ? parameter.Length : 0) + 3 /*size of ' ' \r\n*/);
stringBuilder.Append(command);
if (!string.IsNullOrEmpty(parameter))
{
stringBuilder.Append(' ');
stringBuilder.Append(parameter);
}
stringBuilder.Append("\r\n");
return stringBuilder.ToString();
}