avoid empty brackets (as creacted by 'pseudo-regiseur')


git-svn-id: https://ilk.uvt.nl/svn/sources/Frog/trunk@17420 12f355fe-0486-481a-ad91-c297ab22b4e3
oeps. debugging was on


git-svn-id: https://ilk.uvt.nl/svn/sources/Frog/trunk@17421 12f355fe-0486-481a-ad91-c297ab22b4e3