Use server_close() in standalone
Use server_close() in standalone

thanatos/lets-encrypt-preview,lmcro/letsencrypt,stweil/letsencrypt,wteiken/letsencrypt,wteiken/letsencrypt,dietsche/letsencrypt,jtl999/certbot,dietsche/letsencrypt,letsencrypt/letsencrypt,jsha/letsencrypt,bsmr-misc-forks/letsencrypt,jsha/letsencrypt,thanatos/lets-encrypt-preview,jtl999/certbot,bsmr-misc-forks/letsencrypt,TheBoegl/letsencrypt,letsencrypt/letsencrypt,stweil/letsencrypt,mitnk/letsencrypt,DavidGarciaCat/letsencrypt,TheBoegl/letsencrypt,mitnk/letsencrypt,brentdax/letsencrypt,lmcro/letsencrypt,brentdax/letsencrypt,DavidGarciaCat/letsencrypt