[TASK] Show case sensitive command identifier

Instead of using strtolower() use the names of the commands as
provided by the CommandController. This improves the readability
a lot.

Resolves: #76712
Releases: master
Change-Id: Ie85146dc8dbdabd4901996b7324ac476b7d78fdf
Reviewed-on: https://review.typo3.org/48615


Tested-by: Bamboo TYPO3com <info@typo3.com>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>