Docs: Improve usefulness of DocBlocks for ajax-actions.php functions introduced in 4.6.

See #37318.

Built from https://develop.svn.wordpress.org/trunk@38022


git-svn-id: http://core.svn.wordpress.org/trunk@37963 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/admin-footer.php

@@ -80,6 +80,7 @@ do_action( 'admin_footer', '' );
  * @since 4.6.0
  *
  * @global string $hook_suffix
+ *
  * @param string $hook_suffix The current admin page.
  */
 do_action( "admin_print_footer_scripts-$hook_suffix" );