[NaCl SDK] Consistent use of copyright header.

native_client_sdk/src/libraries/nacl_io_test/mount_node_mock.h

Index: native_client_sdk/src/libraries/nacl_io_test/mount_node_mock.h
diff --git a/native_client_sdk/src/libraries/nacl_io_test/mount_node_mock.h b/native_client_sdk/src/libraries/nacl_io_test/mount_node_mock.h
index dbbfda1497aa1d037a4ddfb9e9569fc9bba321e1..7b701410ddb809f7194636cf7dd595251df67014 100644
--- a/native_client_sdk/src/libraries/nacl_io_test/mount_node_mock.h
+++ b/native_client_sdk/src/libraries/nacl_io_test/mount_node_mock.h
@@ -1,7 +1,6 @@
-/* Copyright (c) 2013 The Chromium Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
 
 #ifndef LIBRARIES_NACL_IO_TEST_MOUNT_NODE_MOCK_H_
 #define LIBRARIES_NACL_IO_TEST_MOUNT_NODE_MOCK_H_
@@ -41,4 +40,3 @@ class MountNodeMock : public MountNode {
 };
 
 #endif  // LIBRARIES_NACL_IO_TEST_MOUNT_NODE_MOCK_H_
-