compat/inet_ntop: do not use u_int

It is pointless.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

compat/inet_ntop.c

@@ -93,7 +93,7 @@ inet_ntop6(src, dst, size)
 	 */
 	char tmp[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"], *tp;
 	struct { int base, len; } best, cur;
-	u_int words[NS_IN6ADDRSZ / NS_INT16SZ];
+	unsigned int words[NS_IN6ADDRSZ / NS_INT16SZ];
 	int i;
 
 	/*