[BUGFIX] Fix typo in cHash option description

Resolves: #89925
Releases: master, 9.5, 8.7
Change-Id: I3449606aa143c23dd656dd566c87aec08ae19425
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/62603


Tested-by: Oliver Hader <oliver.hader@typo3.org>
Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Benni Mack <benni@typo3.org>