Actually that makes another point: according to RFC952 hostnames are
allowed only a single period:
http://www.ietf.org/rfc/rfc952.txt
> <hname> ::= <name>*["."<name>]
> <name> ::= <let>[*[<let-or-digit-or-hyphen>]<let-or-digit>]
Unless this was updated in another RFC that means apache shouldn't even
support subdomains in virtual hosts, and say goodbye to the .co.uk tld!
Furthermore the RFC2616 (HTTP/1.1) docs give an invalid hostname as
their example for the Host request header:
https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.23
> GET /pub/WWW/ HTTP/1.1
> Host: www.w3.org
I think we can write this off as confusion due to the apache
documentation and say this is an actual bug and ServerName is supposed
to take domainnames
