make sure options are defined

lib/dialects/abstract/query-generator.js

@@ -173,6 +173,8 @@ module.exports = (function() {
                    If you use a string, you have to escape it on your own.
     */
     updateQuery: function(tableName, attrValueHash, where, options, attributes) {
+      options = options || {}
+
       attrValueHash = Utils.removeNullValuesFromHash(attrValueHash, this.options.omitNull, options)
 
       var query