[BUGFIX] Fix broken select output in BackenUtility::getFuncMenu()

Resolves: #91261
Releases: master
Change-Id: I8e7db92d914a8423b083c08c27c6922b1341f252
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/64387


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: Oliver Hader <oliver.hader@typo3.org>
Reviewed-by: Guido Schmechel <guido.schmechel@brandung.de>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>