[TASK] Make LocalConfiguration.php PSR-2 standard compliant

This patch changes the ArrayUtility::arrayExport function to generate
a PSR-2 compliant output.

Resolves: #70519
Releases: master
Change-Id: Id1d4e384b3de3719ce228e98ba88c8dcff7c2175
Reviewed-on: http://review.typo3.org/43921


Reviewed-by: Helmut Hummel <helmut.hummel@typo3.org>
Tested-by: Helmut Hummel <helmut.hummel@typo3.org>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>