mod_session: Fix problems interpreting the SessionInclude and
SessionExclude configuration.

PR: 56038
Submitted by: Erik Pearson <erik adaptations.com>
Reviewed by: trawick


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1559828 13f79535-47bb-0310-9956-ffa450edef68