增加了编辑评论的链接和等待审核数的气泡。

function wp_admin_bar_comments_menu( $wp_admin_bar ) {
	if ( ! current_user_can( 'edit_posts' ) ) {
		return;
	}

	$awaiting_mod  = wp_count_comments();
	$awaiting_mod  = $awaiting_mod->moderated;
	$awaiting_text = sprintf(
		/* translators: %s: Number of comments. */
		_n( '%s Comment in moderation', '%s Comments in moderation', $awaiting_mod ),
		number_format_i18n( $awaiting_mod )
	);

	$icon   = '';
	$title  = '' . number_format_i18n( $awaiting_mod ) . '';
	$title .= '' . $awaiting_text . '';

	$wp_admin_bar->add_node(
		array(
			'id'    => 'comments',
			'title' => $icon . $title,
			'href'  => admin_url( 'edit-comments.php' ),
		)
	);
}