message: fix: mem::take TODO
diff: @@ -39,8 +39,7 @@ struct Collector(Vec<u8>);
  impl Collector {
  pub fn take_content(&mut self) -> Vec<u8> {
  - // TODO: replace with `std::mem::take` once stable
  - std::mem::replace(&mut self.0, Vec::default())
  + std::mem::take(&mut self.0)
  }
  }
  