Audit additional vnode information in the implementation of the

ftruncate(2) system call.  This was not required by the Common
Criteria, which needed only open-time audit.

MFC after:	2 weeks
Sponsored by:	DARPA, AFRL

sys/kern/vfs_vnops.c

@@ -1302,6 +1302,7 @@ vn_truncate(struct file *fp, off_t length, struct ucred *active_cred,
 	if (error)
 		goto out1;
 	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
+	AUDIT_ARG_VNODE1(vp);
 	if (vp->v_type == VDIR) {
 		error = EISDIR;
 		goto out;