adjust fix for (eslint) warning index used outside...
adjust fix for (eslint) warning index used outside...

akre54/underscore,rlugojr/underscore,tnga/underscore-es,documentcloud/underscore,jashkenas/underscore,jashkenas/underscore,jdelbello/underscore,akre54/underscore,rlugojr/underscore,tnga/underscore-es,documentcloud/underscore,keepgoingwm/underscore,jdelbello/underscore,keepgoingwm/underscore