#3608, #3676: Close connection if HAProxy 2.0 message is a health check

proxy/src/main/java/net/md_5/bungee/netty/HandlerBoss.java

@@ -94,6 +94,9 @@ public class HandlerBoss extends ChannelInboundHandlerAdapter
                     } );
 
                     channel.setRemoteAddress( newAddress );
+                } else
+                {
+                    channel.close();
                 }
             } finally
             {