If the proxy was enabled, and UseCanonicalHostname was off,

then the Via: header would report not the proxy
hosts's ServerName (or any of its configured VHosts's names) as it
should, but the *origin hosts*'s name.
Now it reports its ServerName.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@102320 13f79535-47bb-0310-9956-ffa450edef68