Remove visual noise from sccomp

Change-Id: Ibf1d8ab8db874805a5cdab9a0cfa5bf84fb6b869
Reviewed-on: https://gerrit.libreoffice.org/8303
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>