simplify log file error handling
simplify log file error handling

stweil/letsencrypt,letsencrypt/letsencrypt,jtl999/certbot,letsencrypt/letsencrypt,bsmr-misc-forks/letsencrypt,jsha/letsencrypt,bsmr-misc-forks/letsencrypt,jsha/letsencrypt,lmcro/letsencrypt,jtl999/certbot,stweil/letsencrypt,lmcro/letsencrypt