1592 bug of mqttbufferreader (#1593)

Source/MQTTnet.Benchmarks/Program.cs

@@ -30,6 +30,7 @@ namespace MQTTnet.Benchmarks
             Console.WriteLine("d = UnsubscribeBenchmark");
             Console.WriteLine("e = MessageDeliveryBenchmark");
             Console.WriteLine("f = AsyncLockBenchmark");
+            Console.WriteLine("g = MqttBufferReaderBenchmark");
 
             var pressedKey = Console.ReadKey(true);
             switch (pressedKey.KeyChar)
@@ -79,9 +80,12 @@ namespace MQTTnet.Benchmarks
                 case 'f':
                     BenchmarkRunner.Run<AsyncLockBenchmark>();
                     break;
+                case 'g':
+                    BenchmarkRunner.Run<MqttBufferReaderBenchmark>();
+                    break;
             }
 
             Console.ReadLine();
         }
     }
-}
+}