[FOLLOWUP][TASK] Improve .htaccess files

Fix invalid syntax for mod_filter on apache 2.4 and mismatching comment
endings.

Resolves: #66235
Releases: master
Change-Id: Id4a67dab8f2fbf4d4bf9e2da4ac1c83d06b93388
Reviewed-on: http://review.typo3.org/40793


Reviewed-by: Stephan Großberndt <stephan@grossberndt.de>
Tested-by: Stephan Großberndt <stephan@grossberndt.de>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>