Updated Drupal to 8.6. This goes with the following updates because it's possible...
[yaffs-website] / vendor / zendframework / zend-stdlib / src / Guard /
drwxr-xr-x   ..
-rw-r--r-- 497 AllGuardsTrait.php
-rw-r--r-- 1261 ArrayOrTraversableGuardTrait.php
-rw-r--r-- 1009 EmptyGuardTrait.php
-rw-r--r-- 1006 NullGuardTrait.php