Index: src/wp-admin/js/common.js
===================================================================
--- src/wp-admin/js/common.js	(revision 26626)
+++ src/wp-admin/js/common.js	(working copy)
@@ -562,7 +562,7 @@
 			$adminmenu.on( 'touchstart.wp-responsive', 'li.wp-has-submenu > a', function() {
 				scrollStart = $window.scrollTop();
 			}).on( 'touchend.wp-responsive click.wp-responsive', 'li.wp-has-submenu > a', function( event ) {
-				if ( ! $adminmenu.data('wp-responsive') || 
+				if ( ! $adminmenu.data('wp-responsive') ||
 					( event.type === 'touchend' && $window.scrollTop() !== scrollStart ) ) {
 
 					return;