Relicense httpgzip from GPLv3 to Expat-style MIT License

The reasons for relicensing are as follows:

  (1) httpgzip is in a fairly trivial library. Anyone unwilling to use
      GPL code could probably rewrite it themselves in an
      afternoon. Therefore the GPL license of httpgzip was unlikely to
      result in anyone writing any new GPL software or preventing any
      malicious embedded product from seeing the light of day, which
      were the aims of its use.

  (2) The Go community overwhelmingly favours BSD/MIT licenses at
      present. While this alone is not a reason to relicense httpgzip,
      combined with (1) the Expat license seems a better choice due to
      its wider acceptance in the community.

example_test.go

@@ -1,23 +1,6 @@
-/*
-   Copyright 2015 The Httpgzip Authors. See the AUTHORS file at the
-   top-level directory of this distribution and at
-   <https://xi2.org/x/httpgzip/m/AUTHORS>.
-
-   This file is part of Httpgzip.
-
-   Httpgzip is free software: you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by
-   the Free Software Foundation, either version 3 of the License, or
-   (at your option) any later version.
-
-   Httpgzip is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with Httpgzip.  If not, see <https://www.gnu.org/licenses/>.
-*/
+// Copyright (c) 2015 The Httpgzip Authors.
+// Use of this source code is governed by a Expat-style
+// MIT license that can be found in the LICENSE file.
 
 package httpgzip_test
 

httpgzip.go

@@ -1,23 +1,6 @@
-/*
-   Copyright 2015 The Httpgzip Authors. See the AUTHORS file at the
-   top-level directory of this distribution and at
-   <https://xi2.org/x/httpgzip/m/AUTHORS>.
-
-   This file is part of Httpgzip.
-
-   Httpgzip is free software: you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by
-   the Free Software Foundation, either version 3 of the License, or
-   (at your option) any later version.
-
-   Httpgzip is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with Httpgzip.  If not, see <https://www.gnu.org/licenses/>.
-*/
+// Copyright (c) 2015 The Httpgzip Authors.
+// Use of this source code is governed by a Expat-style
+// MIT license that can be found in the LICENSE file.
 
 // Package httpgzip implements an http.Handler wrapper adding gzip
 // compression for appropriate requests.

httpgzip_test.go

@@ -1,23 +1,6 @@
-/*
-   Copyright 2015 The Httpgzip Authors. See the AUTHORS file at the
-   top-level directory of this distribution and at
-   <https://xi2.org/x/httpgzip/m/AUTHORS>.
-
-   This file is part of Httpgzip.
-
-   Httpgzip is free software: you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by
-   the Free Software Foundation, either version 3 of the License, or
-   (at your option) any later version.
-
-   Httpgzip is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with Httpgzip.  If not, see <https://www.gnu.org/licenses/>.
-*/
+// Copyright (c) 2015 The Httpgzip Authors.
+// Use of this source code is governed by a Expat-style
+// MIT license that can be found in the LICENSE file.
 
 package httpgzip_test
 

internal/gzip/gzip_kpgzip.go

@@ -1,25 +1,8 @@
-// +build kpgzip
-
-/*
-   Copyright 2015 The Httpgzip Authors. See the AUTHORS file at the
-   top-level directory of this distribution and at
-   <https://xi2.org/x/httpgzip/m/AUTHORS>.
-
-   This file is part of Httpgzip.
+// Copyright (c) 2015 The Httpgzip Authors.
+// Use of this source code is governed by a Expat-style
+// MIT license that can be found in the LICENSE file.
 
-   Httpgzip is free software: you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by
-   the Free Software Foundation, either version 3 of the License, or
-   (at your option) any later version.
-
-   Httpgzip is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with Httpgzip.  If not, see <https://www.gnu.org/licenses/>.
-*/
+// +build kpgzip
 
 // Package gzip is a partial implementation of the gzip API using the
 // github.com/klauspost/compress/gzip package. It contains the part of

internal/gzip/gzip_stdlib.go

@@ -1,25 +1,8 @@
-// +build !kpgzip
-
-/*
-   Copyright 2015 The Httpgzip Authors. See the AUTHORS file at the
-   top-level directory of this distribution and at
-   <https://xi2.org/x/httpgzip/m/AUTHORS>.
-
-   This file is part of Httpgzip.
+// Copyright (c) 2015 The Httpgzip Authors.
+// Use of this source code is governed by a Expat-style
+// MIT license that can be found in the LICENSE file.
 
-   Httpgzip is free software: you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by
-   the Free Software Foundation, either version 3 of the License, or
-   (at your option) any later version.
-
-   Httpgzip is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with Httpgzip.  If not, see <https://www.gnu.org/licenses/>.
-*/
+// +build !kpgzip
 
 // Package gzip is a partial implementation of the gzip API using the
 // standard libary compress/gzip package. It contains the part of the