Merge r179763 from trunk:

* modules/filters/mod_include.c (handle_include): Fix possible
variable corruption with nested includes.

PR: 12655
Reviewed by: jorton, nd, jerenkrantz


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.0.x@264762 13f79535-47bb-0310-9956-ffa450edef68