Fix IPv4 routes are disabling exit

(This was actually already working because macOS is buggy and doesn't
actually remove routes other than the default).

llarp/apple/PacketTunnelProvider.m

@@ -135,7 +135,7 @@ static void del_default_route(void* ctx) {
   LLARPPacketTunnel* t = (__bridge LLARPPacketTunnel*) ctx;
 
   t->settings.IPv4Settings.includedRoutes = @[t->tun_route4];
-  t->settings.IPv4Settings.includedRoutes = @[]; // No tun_route6 yet.
+  t->settings.IPv6Settings.includedRoutes = @[]; // No tun_route6 yet.
 
   [t updateNetworkSettings];
 }