correcting css error

Author: AndyKilmory

kahuna/public/js/search/results.html

@@ -136,7 +136,7 @@
         </div>
 
         <ul ng-class="{'results': !ctrl.usePermissionsFilter(),
-                       'result--alternate': ctrl.usePermissionsFilter()}"
+                       'results--alternate': ctrl.usePermissionsFilter()}"
             gu:lazy-table="ctrl.imagesAll"
             gu:lazy-table-cell-min-width="280"
             gu:lazy-table-cell-height="303"