* modules/proxy/proxy_http.c (ap_proxy_http_process_response):

Consistently check whether r->status is "successful" or not; fix
screwy handling of 2xx-but-not-200 responses when ProxyErrorOverride
is used.

PR: 20183
Submitted by: Marcus Janson <marcus.janson@tre.se>, Joe Orton


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@102935 13f79535-47bb-0310-9956-ffa450edef68