Cleanup: fix some CSS comment styles (especially copyrights)

chrome/browser/resources/user_manager/control_bar.css

 /* Copyright 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.
- */
+ * found in the LICENSE file. */
 
 /* Overrides of styles in chrome/browser/resources/chromeos/login/header_bar.js
-* that are needed by the desktop user chooser screen
-*/
+ * that are needed by the desktop user chooser screen. */
 #login-header-bar {
   background-color: white;
   border-top: 1px solid #e2e2e2;
   bottom: 0;
   left: 0;
   padding-bottom: 16px;
   padding-top: 16px;
   position: absolute;
   right: 0;
 }
@@ skipping 61 matching lines @@
   height: 18px;
   position: absolute;
   right: 16px;
   top: 20px;
 }
 
 html[dir=rtl] #logo {
   left: 16px;
   right: auto;
 }