use bool instead of int

src/libfreeswan/freeswan.h

@@ -169,7 +169,7 @@ size_t splitkeytoid(const unsigned char *e, size_t elen, const unsigned char *m,
 					size_t mlen, char *dst, size_t dstlen);
 #define	KEYID_BUF		10	/* up to 9 text digits plus NUL */
 err_t ttoprotoport(char *src, size_t src_len, u_int8_t *proto, u_int16_t *port,
-							int *has_port_wildcard);
+							bool *has_port_wildcard);
 
 /* initializations */
 void initsaid(const ip_address *addr, ipsec_spi_t spi, int proto, ip_said *dst);