Call strlen() if name length provided is 0, like OpenSSL does.
Issue notice by Christian Heimes <christian@python.org>
ok deraadt@ jsing@
X509_VERIFY_PARAM_get0_name(const X509_VERIFY_PARAM *param)
{
	return param->name;
}

X509_VERIFY_PARAM_get0_name(const X509_VERIFY_PARAM *param)
{
	return param->name;
}
