recognise options intended for use in SSL/TLS clients or servers. One or
both of these flags must be set.
+=item SSL_CONF_CERTIFICATE
+
+recognise certificate and private key options.
+
=item SSL_CONF_FLAG_SHOW_ERRORS
indicate errors relating to unrecognised options or missing arguments in
=head1 HISTORY
-These functions were first added to OpenSSL 1.1.0
+These functions were first added to OpenSSL 1.0.2
=cut