This specifies the CRL input format. B<DER> format is DER encoded CRL
structure.B<PEM> (the default) is a base64 encoded version of
-the DER form with header and footer lines.
+the DER form with header and footer lines. The default format is PEM.
=item B<-outform DER|PEM>
This specifies the PKCS#7 structure output format. B<DER> format is DER
encoded PKCS#7 structure.B<PEM> (the default) is a base64 encoded version of
-the DER form with header and footer lines.
+the DER form with header and footer lines. The default format is PEM.
=item B<-in filename>