Trailing commas in JavaScript cause syntax errors in IE

There is some JavaScript code in modules/system/system.js that includes some trailing commas after object property definitions. Non-IE browsers do not care about these commas, but IE considers them to be a syntax error and will bail out on the entire JS file. Most users won't even notice this, but I happened to have JS debugging turned on in IE and got a lovely white screen with a error message. An image is attached.

I'll roll a patch later today or someone else can since it's such a small change.

For those unsure of what I'm talking about, see the bolded code below. What I'm referring to is the isolated "}," on the second to last line in the two examples.

Drupal.behaviors.userTimeZones = {
  attach: function (context, settings) {
    $('#empty-timezone-message-wrapper .description').hide();
    $('#edit-configurable-timezones', context).change(function () {
      $('#empty-timezone-message-wrapper').toggle();
    });
  },
};

Drupal.behaviors.pageCache = {
  attach: function (context, settings) {
    $('#edit-cache-0', context).change(function () {
      $('#page-compression-wrapper').hide();
      $('#cache-error').hide();
    });
    $('#edit-cache-1', context).change(function () {
      $('#page-compression-wrapper').show();
      $('#cache-error').hide();
    });
    $('#edit-cache-2', context).change(function () {
      $('#page-compression-wrapper').show();
      $('#cache-error').show();
    });
  },
};