func printSignedStatusLine(crt *pkix.Certificate, name string) {
duration := crt.GetExpirationDuration()
hours := duration.Hours()
days := hours / 24
if days < 60 {
fmt.Printf("%s: WARN (%.2f days until expiration)\n", name, days)
} else {
fmt.Printf("%s: OK (%.2f days until expiration)\n", name, days)
}
}
