I'm not sure about JSLint, you can view the available options here.
Using JSHint however, you could use the //jshint es3:true
option to
[...] tell JSHint that your code needs to adhere to ECMAScript 3 specification. Use this option if you need your program to be executable in older browsers—such as Internet Explorer 6/7/8/9—and other legacy JavaScript environments.
as described in the documentation