# too-soon

alert on upcoming expirations.
like, certificates for my domain expire too soon.

Default is expiration within 20 days.

## inital functionality

Arguments passed to the tool are PEM encoded x509 files.
No output at all if all good.
If any of the PEM x509 files have DNS Names _and_ the notAfter date is within 20day from today, then output text alert to stdout and return non-zero exit code.