From bcdca8950fc32d21bc76728cbaaee3e5db7529dd Mon Sep 17 00:00:00 2001
From: Liang Ding <DL88250@gmail.com>
Date: Thu, 13 Nov 2014 17:12:02 +0800
Subject: [PATCH] add file header

---
 util/string.go | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/util/string.go b/util/string.go
index 4b454eb..e207fd7 100755
--- a/util/string.go
+++ b/util/string.go
@@ -1,3 +1,17 @@
+// Copyright (c) 2014, B3log
+//  
+// 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 util
 
 type str struct{}