do not block for service to restart

src/scripts/restartservice.sh

@@ -23,13 +23,13 @@ service="$1"
 
 if [[ "${service}" == "unbound" ]]; then
     unbound-anchor -a /var/lib/unbound/root.key
-    systemctl restart unbound
+    systemctl restart --no-block unbound
 elif [[ "${service}" == "nginx" ]]; then
     nginx -s reload
 elif [[ "${service}" == "docker" ]]; then
-    systemctl restart docker
+    systemctl restart --no-block docker
 elif [[ "${service}" == "collectd" ]]; then
-    systemctl restart collectd
+    systemctl restart --no-block collectd
 else
     echo "Unknown service ${service}"
     exit 1