don't output block enclosure when empty
don't output block enclosure when empty

rchavik/croogo,xintesa/croogo,Wouter0100/croogo,damien-biasotto/croogo,cvo-technologies/croogo,xintesa/croogo,cvo-technologies/croogo,xintesa/croogo,rakeshtembhurne/croogo,delkyd/croogo,delkyd/croogo,rchavik/croogo,delkyd/croogo,cvo-technologies/croogo,Wouter0100/croogo,damien-biasotto/croogo,Wouter0100/croogo,rakeshtembhurne/croogo,rakeshtembhurne/croogo