If this option is used several times, the last one will be used.
.IP "--cert-type <type>"
(SSL) Tells curl what certificate type the provided certificate is in. PEM,
-DER and ENG are recognized types.
+DER and ENG are recognized types. If not specified, PEM is assumed.
If this option is used several times, the last one will be used.
.IP "--cacert <CA certificate>"
If this option is used several times, the last one will be used.
.IP "--key-type <type>"
(SSL) Private key file type. Specify which type your \fI--key\fP provided
-private key is. DER, PEM and ENG are supported.
+private key is. DER, PEM and ENG are supported. If not specified, PEM is
+assumed.
If this option is used several times, the last one will be used.
.IP "--krb4 <level>"