Cleanup: fix some CSS comment styles (especially copyrights)

ui/webui/resources/css/chromeos/ui_account_tweaks.css

Index: ui/webui/resources/css/chromeos/ui_account_tweaks.css
diff --git a/ui/webui/resources/css/chromeos/ui_account_tweaks.css b/ui/webui/resources/css/chromeos/ui_account_tweaks.css
index bfe3228caf1aa0fa58883f4ddebb3eba9da0c529..91ae0699729fc35d8e9bd9ca5334ccce1e7ba721 100644
--- a/ui/webui/resources/css/chromeos/ui_account_tweaks.css
+++ b/ui/webui/resources/css/chromeos/ui_account_tweaks.css
@@ -1,11 +1,9 @@
 /* Copyright (c) 2012 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.
- */
+ * found in the LICENSE file. */
 
 /* This file defines styles for internal page elements that have special
- * look and feel based on account status (owner/non-owner/guest).
- */
+ * look and feel based on account status (owner/non-owner/guest). */
 
 .guest-disabled {
   color: #999;