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_set_depth(X509_VERIFY_PARAM *param, int depth)
{
	param->depth = depth;
}

X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth)
{
	param->depth = depth;
}
