Fis error in determin if systemd support is present in case of debian 13 and newer.

check_webservice_load.sh

@@ -345,7 +345,7 @@ if ! $vserver_guest ; then
    systemd=$(which systemd)
    systemctl=$(which systemctl)
 
-   if [[ -n "$systemd" ]] && [[ -n "$systemctl" ]] ; then
+   if [[ -n "$systemd" ]] || [[ -n "$systemctl" ]] ; then
       systemd_supported=true
    fi
 fi