undefined variable $path in _content_moderation_get_current_viewed_node

in _content_moderation_get_current_viewed_node
there is a call to menu_get_item

<?php
function _content_moderation_get_current_viewed_node() {
  $router_item = menu_get_item($path);
?>

We don't have the $path variable here and menu_get_item doesn't need it anyways.
just call menu_get_item without sending any parameters.