# returns: 0
#-------------------------------------------------------------
- if [ "$DELIVERY_RANDOMIZATION" != "0" ] || [ ! -z "$DELIVERY_RANDOMIZATION" ]; then
+ if [ "$DELIVERY_RANDOMIZATION" != "0" ] && [ ! -z "$DELIVERY_RANDOMIZATION" ]; then
# remove non-digits
DELIVERY_RANDOMIZATION="`echo $DELIVERY_RANDOMIZATION | sed -e 's/[^0-9]//g'`"
else