dev-comment spelling mistakes (#4434)

polkadot/node/network/collator-protocol/src/collator_side/mod.rs

@@ -938,7 +938,7 @@ where
 			handle_incoming_peer_message(ctx, runtime, state, remote, msg).await?;
 		},
 		NewGossipTopology(..) => {
-			// impossibru!
+			// impossible!
 		},
 	}
 

polkadot/node/network/collator-protocol/src/collator_side/tests.rs

@@ -311,7 +311,7 @@ async fn distribute_collation(
 	// whether or not we expect a connection request or not.
 	should_connect: bool,
 ) -> DistributeCollation {
-	// Now we want to distribute a PoVBlock
+	// Now we want to distribute a `PoVBlock`
 	let pov_block = PoV { block_data: BlockData(vec![42, 43, 44]) };
 
 	let pov_hash = pov_block.hash();
@@ -531,7 +531,7 @@ fn advertise_and_send_collation() {
 
 		// We declare to the connected validators that we are a collator.
 		// We need to catch all `Declare` messages to the validators we've
-		// previosly connected to.
+		// previously connected to.
 		for peer_id in test_state.current_group_validator_peer_ids() {
 			expect_declare_msg(&mut virtual_overseer, &test_state, &peer_id).await;
 		}
@@ -897,7 +897,7 @@ where
 
 		// We declare to the connected validators that we are a collator.
 		// We need to catch all `Declare` messages to the validators we've
-		// previosly connected to.
+		// previously connected to.
 		for peer_id in test_state.current_group_validator_peer_ids() {
 			expect_declare_msg(virtual_overseer, &test_state, &peer_id).await;
 		}

polkadot/node/network/collator-protocol/src/validator_side/mod.rs

@@ -1009,7 +1009,7 @@ where
 			state.metrics.note_collator_peer_count(state.peer_data.len());
 		},
 		NewGossipTopology(..) => {
-			// impossibru!
+			// impossible!
 		},
 		PeerViewChange(peer_id, view) => {
 			handle_peer_view_change(state, peer_id, view).await?;
@@ -1254,7 +1254,7 @@ async fn handle_collation_fetched_result<Context>(
 	Context: SubsystemContext<Message = CollatorProtocolMessage>,
 {
 	// If no prior collation for this relay parent has been seconded, then
-	// memoize the collation_event for that relay_parent, such that we may
+	// memorize the `collation_event` for that `relay_parent`, such that we may
 	// notify the collator of their successful second backing
 	let relay_parent = collation_event.1.relay_parent;
 
@@ -1392,7 +1392,7 @@ async fn poll_collation_response(
 					"Fetching collation failed due to network error"
 				);
 				// A minor decrease in reputation for any network failure seems
-				// sensible. In theory this could be exploited, by DoSing this node,
+				// sensible. In theory this could be exploited, by Dosing this node,
 				// which would result in reduced reputation for proper nodes, but the
 				// same can happen for penalties on timeouts, which we also have.
 				CollationFetchResult::Error(COST_NETWORK_ERROR)
@@ -1406,7 +1406,7 @@ async fn poll_collation_response(
 					"Request timed out"
 				);
 				// A minor decrease in reputation for any network failure seems
-				// sensible. In theory this could be exploited, by DoSing this node,
+				// sensible. In theory this could be exploited, by Dosing this node,
 				// which would result in reduced reputation for proper nodes, but the
 				// same can happen for penalties on timeouts, which we also have.
 				CollationFetchResult::Error(COST_REQUEST_TIMED_OUT)

polkadot/node/network/collator-protocol/src/validator_side/tests.rs

@@ -494,7 +494,7 @@ fn collator_authentication_verification_works() {
 //	our view.
 //	- Collation protocol should request one PoV.
 //	- Collation protocol should disconnect both collators after having received the collation.
-//	- The same collators plus an additional collator connect again and send povs for a different relay parent.
+//	- The same collators plus an additional collator connect again and send `PoV`s for a different relay parent.
 //	- Collation protocol will request one PoV, but we will cancel it.
 //	- Collation protocol should request the second PoV which does not succeed in time.
 //	- Collation protocol should request third PoV.
@@ -697,7 +697,7 @@ fn reject_connection_to_next_group() {
 			&mut virtual_overseer,
 			peer_b.clone(),
 			test_state.collators[0].clone(),
-			test_state.chain_ids[1].clone(), // next, not current para_id
+			test_state.chain_ids[1].clone(), // next, not current `para_id`
 		)
 		.await;