Add AUTHORS and LICENSE files, and copyright headers to relevant source files...

trunk/test/generator-output/actions/subdir1/executable.gyp

+# Copyright (c) 2009 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
 {
   'targets': [
     {
       'target_name': 'program',
       'type': 'executable',
       'msvs_cygwin_shell': 0,
       'sources': [
         'program.c',
       ],
       'actions': [
@@ skipping 20 matching lines @@
           ],
           'action': [
             'python', '<(_inputs)', '<@(_outputs)',
           ],
           'process_outputs_as_sources': 1,
         },
       ],
     },
   ],
 }