Since this is not a label for another widget, but some text that screen
readers should speak.

Change-Id: Iddc2840e60c8a55caf2e6581831024e2658e084e
Reviewed-on: https://gerrit.libreoffice.org/59668
Tested-by: Jenkins
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>