[TASK] Use real boolean value for pi_getLL third param

Make use of boolean value TRUE as third parameter in
pi_getLL function.

Change-Id: I688187fcb5130b9d3b49fabeee36c67cf300e3dc
Resolves: #50469
Releases: 6.2
Reviewed-on: https://review.typo3.org/22593
Reviewed-by: Stefan Neufeind
Tested-by: Stefan Neufeind
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn