[TASK] Fix dummy parameter and return texts in phpDoc

Resolves: #63969
Releases: master
Change-Id: If6559f99998ad9f188b40466830556db507d9eda
Reviewed-on: http://review.typo3.org/35550
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>