MDL-57197 js: fix AMD module warnings

In 3.2 we are free of AMD lint warnings, unfortunately we can't expose
them through grunt yet due to
"File ignored because of a matching ignore pattern. Use "--no-ignore" to
override"

ps. this isn't related to MDL-57197 at all, i'm just a Rebel

admin/tool/templatelibrary/amd/src/search.js

@@ -41,6 +41,7 @@ define(['jquery', 'core/ajax', 'core/log', 'core/notification', 'core/templates'
      * Get the current values for the form inputs and refresh the list of matching templates.
      *
      * @method refreshSearch
+     * @param {String} themename The naeme of the theme.
      */
     var refreshSearch = function(themename) {
         var componentStr = $('[data-field="component"]').val();