Add braces around a two-line code block.

src/or/geoip.c

@@ -270,9 +270,10 @@ int
 geoip_get_country_by_addr(const tor_addr_t *addr)
 {
   uint32_t ipaddr;
-  if (tor_addr_family(addr) != AF_INET)
+  if (tor_addr_family(addr) != AF_INET) {
     /*XXXX IP6 support ipv6 geoip.*/
     return -1;
+  }
   ipaddr = tor_addr_to_ipv4h(addr);
   return geoip_get_country_by_ip(ipaddr);
 }