Menu tests: Fix lint error

Author: jzaefferer

tests/unit/menu/menu_methods.js

@@ -73,7 +73,7 @@ test( "refresh icons (see #9377)", function() {
 	expect( 3 );
 	var element = $( "#menu1" ).menu();
 	ok( !element.hasClass( "ui-menu-icons") );
-	element.find( "li:first a" ).html( '<span class="ui-icon ui-icon-disk"></span>Save</a>' );
+	element.find( "li:first a" ).html( "<span class='ui-icon ui-icon-disk'></span>Save</a>" );
 	element.menu( "refresh" );
 
 	ok( element.hasClass( "ui-menu-icons" ) );