When using Redirect in directory context, append requested query

string if there's no one supplied by configuration.

PR: 10961
Reviewed by: Jeff Trawick, Jim Jagielski


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/APACHE_2_0_BRANCH@99581 13f79535-47bb-0310-9956-ffa450edef68