extra elements were reported in the Ipifc structure.

Reference: /n/sources/patch/applied/ip-man-page
Date: Sat Aug 19 04:10:10 CES 2006
Signed-off-by: quanstro@quanstro.net

--- /sys/man/2/ip	Sat Aug 19 04:09:36 2006
+++ /sys/man/2/ip	Sat Aug 19 04:09:30 2006
@@ -291,8 +291,6 @@
 	char	dev[64];	/* associated physical device */
  	int	mtu;		/* max transfer unit */
 
-	long	validlt;	/* valid life time */
- 	long	preflt;		/* preferred life time */
 	uchar	sendra6;	/* on == send router adv */
 	uchar	recvra6;	/* on == rcv router adv */