Update Syntax Tools license headers

This makes it clear that Apache 2.0 applies, without dropping the old LGPL
licensing, and makes all the Syntax Tools file headers look the same as
upstream.

1 files changed, 19 insertions, 14 deletions

diff --git a/lib/syntax_tools/src/erl_syntax.erl b/lib/syntax_tools/src/erl_syntax.erl
index ee42e56172..4347cc46c1 100644
--- a/lib/syntax_tools/src/erl_syntax.erl
+++ b/lib/syntax_tools/src/erl_syntax.erl
@@ -1,18 +1,23 @@
 %% =====================================================================
-%% This library is free software; you can redistribute it and/or modify
-%% it under the terms of the GNU Lesser General Public License as
-%% published by the Free Software Foundation; either version 2 of the
-%% License, or (at your option) any later version.
-%%
-%% This library 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
-%% Lesser General Public License for more details.
-%%
-%% You should have received a copy of the GNU Lesser General Public
-%% License along with this library; if not, write to the Free Software
-%% Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
-%% USA
+%% 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.
+%%
+%% Alternatively, you may use this file under the terms of the GNU Lesser
+%% General Public License (the "LGPL") as published by the Free Software
+%% Foundation; either version 2.1, or (at your option) any later version.
+%% If you wish to allow use of your version of this file only under the
+%% terms of the LGPL, you should delete the provisions above and replace
+%% them with the notice and other provisions required by the LGPL; see
+%% <http://www.gnu.org/licenses/>. If you do not delete the provisions
+%% above, a recipient may use your version of this file under the terms of
+%% either the Apache License or the LGPL.
 %%
 %% @copyright 1997-2006 Richard Carlsson
 %% @author Richard Carlsson <[email protected]>