[NET] IPV4: Fix whitespace errors.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/xfrm4_tunnel.c b/net/ipv4/xfrm4_tunnel.c
index f110af5..1be6762 100644
--- a/net/ipv4/xfrm4_tunnel.c
+++ b/net/ipv4/xfrm4_tunnel.c
@@ -13,7 +13,7 @@
 static int ipip_output(struct xfrm_state *x, struct sk_buff *skb)
 {
 	struct iphdr *iph;
-	
+
 	iph = skb->nh.iph;
 	iph->tot_len = htons(skb->len);
 	ip_send_check(iph);