check_webservice_load.sh: fix error for nginx service.

conf/check_webservice_load.conf.sample

@@ -24,6 +24,17 @@ check_php_fpm=true
 check_redis=false
 check_website=false
 
+# - If service is not listen on 127.0.0.1/loclhost, curl check must
+# - be ommited
+# -
+ommit_curl_check_nginx=false
+
+# - Is this a vserver guest machine?
+# -
+# - Not VSerber guest host does not support systemd!
+# -
+vserver_guest=false
+
 
 # - Additional Settings for check_mysql
 # -