certsPath:=flag.String("letsencrypt-path","/etc/letsencrypt/live","path at which an 'xyz.example.com' containing 'fullchain.pem' and 'privkey.pem' can be found")
defaultHost:=flag.String("default-hostname","localhost.daplie.com","the default folder to find certificates to use when no matches are found")
flag.Parse()
host:=strings.ToLower(*defaultHost)
// See https://groups.google.com/a/letsencrypt.org/forum/#!topic/ca-dev/l1Dd6jzWeu8
/*
ifstrings.HasPrefix("www.",host){
fmt.Println("Because www.example.com is also example.com")