improve npm geoip-lite test

Author: igorklopov

Diff for: test/test-79-npm/geoip-lite/geoip-lite.js

@@ -3,6 +3,6 @@
 var geoip = require('geoip-lite');
 var ip = '207.97.227.239';
 var geo = geoip.lookup(ip);
-if (geo.country) {
+if (geo.country === 'US') {
   console.log('ok');
 }