ip6_vti:Remove the space before the comma

There should be no space before the comma
Signed-off-by: NHongbin Wang <wh_bin@126.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/ipv6/ip6_vti.c

@@ -154,7 +154,7 @@ vti6_tnl_link(struct vti6_net *ip6n, struct ip6_tnl *t)
 {
 	struct ip6_tnl __rcu **tp = vti6_tnl_bucket(ip6n, &t->parms);
 
-	rcu_assign_pointer(t->next , rtnl_dereference(*tp));
+	rcu_assign_pointer(t->next, rtnl_dereference(*tp));
 	rcu_assign_pointer(*tp, t);
 }