netfilter: ipset: Remove extra whitespaces in ip_set.h

Remove unnecessary whitespaces.

Ported from a patch proposed by Sergey Popovich <popovich_sergei@mail.ua>.
Suggested-by: Sergey Popovich <popovich_sergei@mail.ua>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>

include/linux/netfilter/ipset/ip_set.h

@@ -344,6 +344,7 @@ ip_set_get_skbinfo(struct ip_set_skbinfo *skbinfo,
 	mext->skbprio = skbinfo->skbprio;
 	mext->skbqueue = skbinfo->skbqueue;
 }
+
 static inline bool
 ip_set_put_skbinfo(struct sk_buff *skb, struct ip_set_skbinfo *skbinfo)
 {