[BUGFIX] Fix case sensitive path

Change-Id: I4374db96646f92889ce9a6149c2c2a0729ba3505
Releases: 3.1
Resolves: #61698
Reviewed-on: http://review.typo3.org/32848
Reviewed-by: Fabien Udriot <fabien.udriot@ecodev.ch>
Tested-by: Fabien Udriot <fabien.udriot@ecodev.ch>