Merge pull request #2732 from Domiii/patch-1

Prevent `log` options from being dumped to log

lib/sequelize.js

@@ -1056,6 +1056,9 @@ module.exports = (function() {
 
     if (last && Utils._.isPlainObject(last) && last.hasOwnProperty('logging')) {
       options = last;
+      
+      // remove options from set of logged arguments
+      args.splice(args.length-1, 1);
     } else {
       options = this.options;
     }