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/inet_frag.h b/include/net/inet_frag.h
index 16ff29a..2431cf8 100644
--- a/include/net/inet_frag.h
+++ b/include/net/inet_frag.h
@@ -46,8 +46,7 @@
 						void *arg);
 	void			(*destructor)(struct inet_frag_queue *);
 	void			(*skb_free)(struct sk_buff *);
-	int			(*match)(struct inet_frag_queue *q,
-						void *arg);
+	bool			(*match)(struct inet_frag_queue *q, void *arg);
 	void			(*frag_expire)(unsigned long data);
 };