Revert "composer: remove un-prefixing for Rector, moved to whitelist in scoper.inc.php"
Revert "composer: remove un-prefixing for Rector, moved to whitelist in scoper.inc.php"

This reverts commit 2899c40b2d7e1f6fbb1c61bd7c14344f8fe5ba91.

RectorPHP/Rector