Fix table row striping on status report page

modules/system/system.module

@@ -1809,7 +1809,7 @@ function theme_status_report(&$requirements) {
   $output = '<table class="system-status-report">';
   foreach ($requirements as $requirement) {
     if ($requirement['#type'] == '') {
-      $class = $i % 2 == 0 ? 'even' : 'odd';
+      $class = ++$i % 2 == 0 ? 'even' : 'odd';
 
       $classes = array(
         REQUIREMENT_INFO => 'info',