* Add diff support to openssl_privatekey.
* Add diff support to openssl_csr.
* Add diff support to x509_crl.
* Add diff support to x509_certificate.
* Add diff support to openssl_publickey.
* Add changelog fragment.
* Prefer one fingerprint for diff infos to reduce noise.
* Apply suggestions from code review
Co-authored-by: Ajpantuso <ajpantuso@gmail.com>
Co-authored-by: Ajpantuso <ajpantuso@gmail.com>