Cleanup: fix some CSS comment styles (especially copyrights)

chrome/browser/resources/ntp4/incognito_and_guest_tab.css

Index: chrome/browser/resources/ntp4/incognito_and_guest_tab.css
diff --git a/chrome/browser/resources/ntp4/incognito_and_guest_tab.css b/chrome/browser/resources/ntp4/incognito_and_guest_tab.css
index 4055c59396a7e46a85dcb4325536e7d2aa01698f..ef6f27913240c99f9e029564674e997def4f9886 100644
--- a/chrome/browser/resources/ntp4/incognito_and_guest_tab.css
+++ b/chrome/browser/resources/ntp4/incognito_and_guest_tab.css
@@ -2,8 +2,7 @@
  * 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;
@@ -31,8 +30,7 @@ a:hover {
 }
 
 /* '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;