' . ( $req ? '*' : '' ) . '
', 'url' => '' ); $modified_defaults = array( 'fields' => apply_filters('comment_form_default_fields', $fields), 'comment_field' => '' . sprintf(__('You must be logged in to post a comment.'), wp_login_url(apply_filters('the_permalink', get_permalink()))) . '
', 'logged_in_as' => '