Merge pull request #67 from holiman/copyright_header

Update copyright header comments

README.md

@@ -1,4 +1,4 @@
-# Fixed size math
+# Fixed size 256-bit math library
 
 This is a library specialized at replacing the big.Int library for math based on 256-bit types. This is meant for use in [go-ethereum](https://github.com/ethereum/go-ethereum) eventually, once it's deemed fast, stable and secure enough. 
 

benchmarks_test.go

@@ -1,7 +1,6 @@
-// Copyright 2019-2020 uint256 Authors.
-// Use of this source code is governed by a BSD-style license that can be found
-// in the COPYING file.
-//
+// uint256: Fixed size 256-bit math library
+// Copyright 2020 uint256 Authors
+// SPDX-License-Identifier: BSD-3-Clause
 
 package uint256
 

conversion.go

@@ -1,9 +1,6 @@
-// Copyright 2020 Martin Holst Swende. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be found
-// in the COPYING file.
-//
-
-// Package math provides integer math utilities.
+// uint256: Fixed size 256-bit math library
+// Copyright 2020 uint256 Authors
+// SPDX-License-Identifier: BSD-3-Clause
 
 package uint256
 

conversion_test.go

@@ -1,7 +1,6 @@
-// Copyright 2020 Martin Holst Swende. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be found
-// in the COPYING file.
-//
+// uint256: Fixed size 256-bit math library
+// Copyright 2020 uint256 Authors
+// SPDX-License-Identifier: BSD-3-Clause
 
 package uint256
 

div.go

@@ -1,3 +1,7 @@
+// uint256: Fixed size 256-bit math library
+// Copyright 2020 uint256 Authors
+// SPDX-License-Identifier: BSD-3-Clause
+
 package uint256
 
 import "math/bits"

fuzz.go

@@ -1,3 +1,7 @@
+// uint256: Fixed size 256-bit math library
+// Copyright 2020 uint256 Authors
+// SPDX-License-Identifier: BSD-3-Clause
+
 // +build gofuzz
 
 package uint256

uint256.go

@@ -1,7 +1,6 @@
-// Copyright 2019 Martin Holst Swende. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be found
-// in the COPYING file.
-//
+// uint256: Fixed size 256-bit math library
+// Copyright 2018-2020 uint256 Authors
+// SPDX-License-Identifier: BSD-3-Clause
 
 // Package math provides integer math utilities.
 

uint256_test.go

@@ -1,7 +1,6 @@
-// Copyright 2019 Martin Holst Swende. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be found
-// in the COPYING file.
-//
+// uint256: Fixed size 256-bit math library
+// Copyright 2018-2020 uint256 Authors
+// SPDX-License-Identifier: BSD-3-Clause
 
 package uint256