output emails as list as well

lib/extensions/data-files-to-json.js

@@ -39,4 +39,9 @@ files.forEach(function (fname) {
       , os: mdata.os_type, arch: mdata.os_arch });
   });
 });
+console.log('');
 console.log('[\n' + Object.keys(emails).map(function (k) { return JSON.stringify(emails[k]); }).join(',\n') + '\n]');
+console.log('');
+console.log('');
+console.log(Object.keys(emails).join(', '));
+console.log('');