[FOLLOWUP][BUGFIX] Spaces between attributes in boolean fields

Spaces added between attributes of boolean input fields.

Resolves: #83040
Releases: 7.6
Change-Id: I28f24bbfbc46d992e452b7f0420c64575dda2df5
Reviewed-on: https://review.typo3.org/54738


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>
Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>