fix bugs

pkg/port/iscsit/login.go

@@ -1,10 +1,25 @@
+/*
+Copyright 2017 The GoStor Authors All rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
 package iscsit
 
 import (
 	"bytes"
 	"fmt"
 
-	//	log "github.com/Sirupsen/logrus"
 	"github.com/gostor/gotgt/pkg/util"
 )