Mod: fmt the codes

demo/hello/tcp/client/client.go

@@ -75,7 +75,6 @@ func main() {
 	taskPool.Close()
 }
 
-
 // NewHelloClientSession use for init client session
 func NewHelloClientSession(session getty.Session) (err error) {
 	tcp.EventListener.SessionOnOpen = func(session getty.Session) {

demo/hello/tcp/config.go

@@ -32,7 +32,7 @@ import (
 )
 
 var (
-	pkgHandler    = &hello.PackageHandler{}
+	pkgHandler = &hello.PackageHandler{}
 	// EventListener register event callback
 	EventListener = &hello.MessageHandler{}
 )