Cleanup: fix some CSS comment styles (especially copyrights)

chrome/browser/resources/chromeos/login/unrecoverable_cryptohome_error_card.css

 /* Copyright 2016 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. */
 
 :host .content {
   padding: 24px 24px 16px;
 }
 
 :host .title {
   font-weight: bold;
   white-space: nowrap;
   word-wrap: normal;
 }
 
 :host .message {
   margin-bottom: 25px;
   margin-top: 20px;
 }