Minor simulator fixes (#703)

cmd/simulator/README.md

@@ -35,7 +35,7 @@ To start a single node network, follow the instructions from the AvalancheGo [RE
 Once you've built AvalancheGo, open the AvalancheGo directory in a separate terminal window and run a single node non-staking network with the following command:
 
 ```bash
-./build/avalanchego --staking-enabled=false --network-id=local
+./build/avalanchego --sybil-protection-enabled=false --network-id=local
 ```
 
 WARNING:

cmd/simulator/load/funder.go

@@ -117,7 +117,7 @@ func DistributeFunds(ctx context.Context, client ethclient.Client, keys []*key.K
 		if err != nil {
 			return nil, fmt.Errorf("failed to fetch balance for addr %s: %w", addr, err)
 		}
-		log.Info("Funded address has balance", "balance", balance)
+		log.Info("Funded address has balance", "addr", addr, "balance", balance)
 	}
 	fundedKeys = append(fundedKeys, needFundsKeys...)
 	return fundedKeys, nil

cmd/simulator/txs/agent.go

@@ -56,14 +56,14 @@ func (a issueNAgent[T]) Execute(ctx context.Context) error {
 
 	for {
 		var (
-			txs  = make([]T, 0, a.n)
-			tx   T
-			done bool
+			txs = make([]T, 0, a.n)
+			tx  T
+			ok  bool
 		)
 		for i := uint64(0); i < a.n; i++ {
 			select {
-			case tx, done = <-txChan:
-				if done {
+			case tx, ok = <-txChan:
+				if !ok {
 					return a.worker.Close(ctx)
 				}
 			case <-ctx.Done():