vpnc: fix IPv6-triggered inoperability

When the server hostname resolved to both IPv4 and IPv6 addresses,
connecting would fail with nothing in syslog. This corrects that oversight.

Signed-off-by: Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>

net/vpnc/files/vpnc.sh

@@ -42,7 +42,7 @@ proto_vpnc_setup() {
 
 	logger -t vpnc "initializing..."
 	serv_addr=
-	for ip in $(resolveip -t 10 "$server"); do
+	for ip in $(resolveip -4t 10 "$server"); do
 		( proto_add_host_dependency "$config" "$ip" $interface )
 		serv_addr=1
 	done