message: Fix `purge_vertices` test.
diff: @@ -67,10 +67,7 @@ fn purge_vertices() {
  assert!(maybe_pv.is_none());
  assert!(matches!(
  *outcomes,
  - [
  - ProtocolOutcome::CreatedTargetedMessage(_, NodeId(0)),
  - ProtocolOutcome::CreatedTargetedMessage(_, NodeId(0)),
  - ]
  + [ProtocolOutcome::CreatedTargetedMessage(_, NodeId(0))]
  ));
  // At 0x23, c0 gets enqueued and added.
  @@ -197,7 +194,8 @@ fn do_not_download_synchronized_dependencies() {
  !outcomes
  .iter()
  .any(|outcome| matches!(outcome, ProtocolOutcome::CreatedTargetedMessage(_, _))),
  - "unexpected dependency request {:?}", outcomes
  + "unexpected dependency request {:?}",
  + outcomes
  );
  let vv = highway
  .validate_vertex(pvv(*unit))
  