test improved

patch-control.sh

@@ -134,7 +134,7 @@ while [ 1 ]; do
                        --column="Minutes" \
                        FALSE Cancel FALSE 5 TRUE 10 FALSE 20`
 
-  if [ "${run_duration}" != "Cancel" ]; then
+  if [ "${run_duration}" != "Cancel" ] && [ "${run_duration}" != "" ]; then
     break
   fi