Adds user to service to insure correct permissions are set, not root.

src/jcb-power-updater.sh

@@ -54,6 +54,7 @@ Description=Update JCB Power Repositories
 ExecStart=/usr/local/bin/jcb-power-updater -d "$target_dir" -q
 StandardOutput=file:$log_dir/$log_file
 StandardError=inherit
+User=$User
 EOL
 
   # Create the jcb-power-updater.timer file