Clean up array expansion

ci/testnet-deploy.sh

@@ -157,13 +157,14 @@ trap shutdown EXIT INT
 set -x
 
 # Build a string to pass zone opts to $cloudProvider.sh: "-z zone1 -z zone2 ..."
+zone_args=()
 for val in "${zone[@]}"; do
-  zone_args="$zone_args -z $val"
+  zone_args+="-z $val "
 done
 
 if ! $skipSetup; then
   echo "--- $cloudProvider.sh delete"
-  time net/"$cloudProvider".sh delete "$zone_args" -p "$netName" ${externalNode:+-x}
+  time net/"$cloudProvider".sh delete ${zone_args[*]} -p "$netName" ${externalNode:+-x}
   if $delete; then
     exit 0
   fi
@@ -175,7 +176,7 @@ if ! $skipSetup; then
     -c "$clientNodeCount"
     -n "$additionalFullNodeCount"
   )
-  create_args+=("$zone_args")
+  create_args+=(${zone_args[*]})
 
   if $blockstreamer; then
     create_args+=(-u)
@@ -211,7 +212,7 @@ else
   config_args=(
     -p "$netName"
   )
-  config_args+=("$zone_args")
+  config_args+=(${zone_args[*]})
   if $publicNetwork; then
     config_args+=(-P)
   fi