Changed exit code to 3 (unique) if exit due to not run as root

root/NCscripts/backup.sh

@@ -348,7 +348,7 @@ done
 ## If not running as root, display error on console and exit
 if [ $(id -u) -ne 0 ]; then
     echo -e "\n${err}This script MUST be run as ROOT. Exiting.${normal}"
-    exit 2
+    exit 3
 fi
 
 ## Check NextCloud webroot