Documentation for CertificateOptions.__init__'s caCerts param mentions a non-existant caCertFile param.

[dreid]

        @param caCerts: List of certificate authority certificates to
        send to the client when requesting a certificate.  Only used if verify
        is True, and if verify is True, either this must be specified or
        caCertsFile must be given.  Since verify is False by default,
        this is None by default.

It seems like this might be a better phrasing of the second sentence.

Only used if verify is True, and if verify is True this must be specified.

[exarkun]

Duplicate of #2061