Cleanup: fix some CSS comment styles (especially copyrights)

chrome/browser/resources/chromeos/choose_mobile_network.css

 /* 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. */
 
 .scanning-msg {
   -webkit-margin-start: 50px;
 }
 
 .spinner {
   float: left;
   height: 18px;
   margin: 7px;
   width: 18px;
 }
 
 [dir='rtl'] .spinner {
   float: right;
 }
 
 .content-area {
   height: 120px;
   overflow: auto;
 }
 
 .disabled {
   opacity: 0.7;
 }