Move linux/jbd.h to ext2fs/kernel-jbd.h, to avoid using the 
system header file version of hbd.h when using diet glibc
(since it forcibly adds /usr/include to the beginning of include
search path.)

diff --git a/debugfs/jfs_user.h b/debugfs/jfs_user.h
index 1583168..3070cd5 100644
--- a/debugfs/jfs_user.h
+++ b/debugfs/jfs_user.h
@@ -3,7 +3,6 @@
 
 typedef unsigned short kdev_t;
 
-#include <linux/jbd.h>
-
+#include <ext2fs/kernel-jbd.h>
 
 #endif /* _JFS_USER_H */