Update services.inc

inc/services.inc

@@ -41,7 +41,7 @@ SINGLE_SERVER_SERVICE_CHECK(){
 				# fi
 				
 				for stc in "${!servicestocheck}"; do
-					if [ ! systemctl is-active --quiet ${stc} ]; then
+					if ! systemctl is-active --quiet ${stc}; then
 						[ "${stc}" = "pdnsadmin" ] && stc="pdnsadmin.service pdnsadmin.socket"
 						/bin/systemctl start ${stc} >/dev/null 2>&1
 					fi