ip_frag: struct inet_frags match() method returns a bool

- match() method returns a boolean
- return (A && B && C && D) -> return A && B && C && D
- fix indentation

Signed-off-by: Eric Dumazet <edumazet@google.com>
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 4332e9a..5f65e7c 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -387,7 +387,7 @@
 };
 
 void ip6_frag_init(struct inet_frag_queue *q, void *a);
-int ip6_frag_match(struct inet_frag_queue *q, void *a);
+bool ip6_frag_match(struct inet_frag_queue *q, void *a);
 
 static inline int ipv6_addr_any(const struct in6_addr *a)
 {