small improvement to setup.sh
small improvement to setup.sh

bigdawg-istc/bigdawg,bigdawg-istc/bigdawg,bigdawg-istc/bigdawg,bigdawg-istc/bigdawg,bigdawg-istc/bigdawg,bigdawg-istc/bigdawg,bigdawg-istc/bigdawg,bigdawg-istc/bigdawg