+ logwrite = IN/O <${certextract {issuer,O} {$tls_in_peercert}}>
+ logwrite = NB/r <${certextract {notbefore,raw} {$tls_in_peercert}}>
+ logwrite = NB <${certextract {notbefore} {$tls_in_peercert}}>
+ logwrite = NB/i <${certextract {notbefore,int}{$tls_in_peercert}}>