Cleanup: fix some CSS comment styles (especially copyrights)

chrome/browser/resources/ntp4/incognito_and_guest_tab.css

 /* Copyright 2014 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.
  *
- * Incognito and guest mode NTP shared CSS.
- */
+ * Incognito and guest mode NTP shared CSS. */
 
 body {
   -webkit-font-smoothing: antialiased;
   font-size: 85%;
 }
 
 h1 {
   font-size: 200%;
   font-weight: 400;
   margin-bottom: .77em;
 }
 
 p {
   line-height: 1.5;
   margin: .588em 0;
   text-align: start;
 }
 
 a {
   color: rgb(51, 103, 214);
 }
 
 a:hover {
   text-decoration: underline;
 }
 
 /* 'Learn More' button styled like a Material Design text button.
- * TODO(edwardjung): Switch styled links to actual text buttons.
- */
+ * TODO(edwardjung): Switch styled links to actual text buttons. */
 .learn-more-button {
   color: rgb(66, 133, 244);
   display: inline-block;
   font-size: 92.8%;
   font-weight: 500;
   margin-top: 1.98em;
   padding: 10.5px 12px;
   text-decoration: none;
   text-transform: uppercase;
 }
@@ skipping 31 matching lines @@
   .content {
     padding: 16px 8px;
   }
 }
 
 @media (max-height:480px) and (max-width:400px) {
   .content {
     margin: auto;
   }
 }