Issue #3421538: `system` is a keyword in MySQL 8 and should not be used

missing_module.module

@@ -12,7 +12,7 @@ function missing_module_find_missing($only_enabled = FALSE) {
   $missing = array();
 
   // Select all active modules from current database.
-  $query = db_select('system')->fields('system', array('filename', 'name', 'status', 'info'));
+  $query = db_select('system', 'sys')->fields('sys', array('filename', 'name', 'status', 'info'));
 
   if ($only_enabled) {
     $query->condition('status', '1', '=');