[NaCl SDK] Consistent use of copyright header.

native_client_sdk/src/libraries/sdk_util/simple_lock.h

Index: native_client_sdk/src/libraries/sdk_util/simple_lock.h
diff --git a/native_client_sdk/src/libraries/sdk_util/simple_lock.h b/native_client_sdk/src/libraries/sdk_util/simple_lock.h
index 6f5d006486da6fb20e001c32fada30fead761806..ea7f01ca5c3bc1fa56f4539246a1267b1534e8b7 100644
--- a/native_client_sdk/src/libraries/sdk_util/simple_lock.h
+++ b/native_client_sdk/src/libraries/sdk_util/simple_lock.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_SDK_UTIL_SIMPLE_LOCK_H_
 #define LIBRARIES_SDK_UTIL_SIMPLE_LOCK_H_
@@ -34,4 +33,3 @@ class SimpleLock {
 };
 
 #endif  // LIBRARIES_SDK_UTIL_SIMPLE_LOCK_H_
-