ProxyPass didn't deal with query strings because the ?args part is

already truncated in that case.

Joel's patch worked for subrequests (i.e. via #include virtual)... I fixed
it to deal with all requests... and I couldn't help but clean up some crufty
code in proxy_http_canon().

Submitted by:	Joel Truher <truher@wired.com>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@80393 13f79535-47bb-0310-9956-ffa450edef68