Ticket #38674: 38674.patch

wp-admin/update-core.php

@@ -131 +131 @@
                 });
         </script>
         <?php
-                echo '<p class="hide-if-no-js"><a id="show-dismissed" href="#">'.__('Show hidden updates').'</a></p>';
+                echo '<p class="hide-if-no-js"><button class="button-link" id="show-dismissed">'.__('Show hidden updates').'</button></p>';
                 echo '<ul id="dismissed-updates" class="core-updates dismissed">';
                 foreach ( (array) $dismissed as $update) {
                         echo '<li>';