[CLEANUP] Fix length of comments to meet CGL

Resolves: #57819
Releases: 6.2
Change-Id: I24a860dda49504e8745fe195f74c519a73a22991
Reviewed-on: https://review.typo3.org/29376
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn
Reviewed-by: Markus Klein
Tested-by: Markus Klein