message: transport/send: Fix assert
diff: @@ -331,7 +331,7 @@ impl TxBuffer {
  }
  pub fn mark_as_lost(&mut self, offset: u64, len: usize) {
  - assert!(self.ranges.highest_offset() > offset + len as u64);
  + assert!(self.ranges.highest_offset() >= offset + len as u64);
  assert!(offset >= self.retired);
  // Make eligible for sending again
  