message: nydusd: fix thread-num validation
  The acceptable range for thread-num should be [1-2024], but now
  this option can be set larger than 1024.
diff: @@ -263,7 +263,7 @@ fn main() -> Result<()> {
  .global(true)
  .validator(|v| {
  if let Ok(t) = v.parse::<i32>() {
  - if t > 0 || t > 1024 {
  + if t > 0 && t <= 1024 {
  Ok(())
  } else {
  Err("Invalid working thread number {}, valid values: [1-1024]"
  