dirent_repair needs to mark the buffer as modified
>From fa744b806ad8655c9ed3a18fcbec1c7992735be5 Mon Sep 17 00:00:00 2001
From: Bob Peterson <firstname.lastname@example.org>
Date: Mon, 8 Aug 2011 14:47:49 -0500
Subject: [PATCH 13/44] dirent_repair needs to mark the buffer as modified
This patch adds a call to bmodified to function dirent_repair. Without
setting the modified bit, directory repairs may be forgotten and never
written back to disk, leaving the damage in place.