Fix output

templates/application/scan_external_mounts.sh

@@ -8,14 +8,19 @@ if [[ $(pgrep -f "${0}" | wc -l) -eq 2 ]]; then
 	# a specific host, but will differ between hosts
 	sleep $((16#$(ip a | grep "link/ether" | head -1 | awk -F ':' '{print $6}' | awk '{print $1}') / 2))m
 	for container in $(get_containers); do
+    error_ids="${error_ids} ${container}: "
 		for id in $(nocc "${container}" files_external:list --all --output json | jq '.[].mount_id' | jq .); do
 			nocc "${container}" files_external:scan "${id}" | grep Error
       # shellcheck disable=SC2181
       if [[ ${?} -eq 0 ]]; then
-        error_ids="${error_ids} ${container}: ${id}"
+        error_ids="${error_ids} ${id}"
       fi
 		done
 	done
+else
+  echo "Another instance of this script is already running, exiting"
+  pgrep -a -f "${0}"
+  exit 0
 fi
 
 if [[ -n "${error_ids}" ]]; then