upgrade copyright

liaoyustudent · peze · commit 7d80bb3dd0f1 · 2020-01-02T14:19:35.000+08:00
diff --git a/LICENSE b/LICENSE
@@ -1,4 +1,4 @@
-Copyright 2009-2019 Alibaba Cloud All rights reserved.
+Copyright (c) 2009-present, Alibaba Cloud 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.

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-Copyright 2009-2019 Alibaba Cloud All rights reserved.`
	`1`	`+Copyright (c) 2009-present, Alibaba Cloud All rights reserved.`
`2`	`2`
`3`	`3`	`Licensed under the Apache License, Version 2.0 (the "License");`
`4`	`4`	`you may not use this file except in compliance with the License.`