The sslget tool sends a TLS SNI header. Apache doesn't like server name
indication without a matching HTTP header. Requests without a Host
header are refused with
HTTP/1.1 400 Bad Request
Hostname
example.org provided via SNI, but no hostname provided in HTTP
request
sslget now sets a Host HTTP header for all requests.
https://fedorahosted.org/pki/ticket/1704