Fix mongoose debug config

Author: kunalkapadia

index.js

@@ -21,7 +21,7 @@ mongoose.connection.on('error', () => {
 });
 
 // print mongoose logs in dev env
-if (config.MONGOOSE_DEBUG) {
+if (config.mongooseDebug) {
   mongoose.set('debug', (collectionName, method, query, doc) => {
     debug(`${collectionName}.${method}`, util.inspect(query, false, 20), doc);
   });