Set g4 dawn and ps viewer commands to ls

This way they do nothing when running the simulation in batch. We only want the .prim files.

modified:   bin/make_dawn_views

bin/make_dawn_views

 #!/bin/bash
 
 #git clone --depth 1 https://eicweb.phy.anl.gov/EIC/datasets.git
-export DAWN_PS_PREVIEWER="ls"
+export DAWN_PS_PREVIEWER="ls "
+export G4DAWNFILE_VIEWER="ls -lrth "
+export G4DAWNFILE_PS_VIEWER="ls "
 
 function print_the_help {
   echo "USAGE: ${0} [-s <skip_events>] -d <dawn_run_dir> "
@@ -94,7 +96,13 @@ if [  "${DETECTOR_ONLY}" -eq "1" ] ; then
   -o derp.root -n 1 \
   --ui csh --vis -b -m macro/dawn_picture.mac & 
 
-sleep 10 
+sleep 10
+echo "sleeping 20 secs ..  " 
+sleep 10
+echo "sleeping 10 secs " 
+sleep 5 
+echo "sleeping 5 secs " 
+sleep 5 
 kill %1
 
 else