[PATCH] Finding stale files in /usr/src during "make update"

What do you people think about the following patch?  It can
be very useful to find stale files under /usr/src which may
sometimes be unsafe.

%%%
Index: Makefile.inc1
===================================================================
RCS file: /home/ncvs/src/Makefile.inc1,v
retrieving revision 1.442
diff -u -r1.442 Makefile.inc1
--- Makefile.inc1	25 Aug 2004 22:06:29 -0000	1.442
+++ Makefile.inc1	30 Aug 2004 07:17:37 -0000
_at__at_ -83,7 +83,7 _at__at_
 .endif
 
 CVS?=		cvs
-CVSFLAGS?=	-A -P -d
+CVSFLAGS?=	-A -P -d -I! -ICVS
 .if defined(CVSTAG)
 CVSFLAGS+=	-r ${CVSTAG}
 .endif
%%%


Cheers,
-- 
Ruslan Ermilov
ru_at_FreeBSD.org
FreeBSD committer