authenticate with. If you want to use a file from the current directory, please
precede it with "./" prefix, in order to avoid confusion with a nickname.
-(iOS and Mac OS X only) With Secure Transport, this string must match the name of a certificate that's in the system or user keychain. You should encode this string in UTF-8 format in case it contains non-ASCII characters. The private key corresponding to the certificate, and certificate chain (if any), must also be present in the keychain.
+(iOS and Mac OS X only) With Secure Transport, this string must match the name
+of a certificate that's in the system or user keychain. You should encode this
+string in UTF-8 format in case it contains non-ASCII characters. The private
+key corresponding to the certificate, and certificate chain (if any), must
+also be present in the keychain. (Added in 7.31.0)
.IP CURLOPT_SSLCERTTYPE
Pass a pointer to a zero terminated string as parameter. The string should be
the format of your certificate. Supported formats are "PEM" and "DER". (Added
the file name of your private key. The default format is "PEM" and can be
changed with \fICURLOPT_SSLKEYTYPE\fP.
-(iOS and Mac OS X only) This option is ignored if curl was built against Secure Transport. Secure Transport expects the private key to be already present in the keychain containing the certificate.
+(iOS and Mac OS X only) This option is ignored if curl was built against Secure
+Transport. Secure Transport expects the private key to be already present in
+the keychain containing the certificate.
.IP CURLOPT_SSLKEYTYPE
Pass a pointer to a zero terminated string as parameter. The string should be
the format of your private key. Supported formats are "PEM", "DER" and "ENG".