Fix a file descriptor leak in mod_include. When we include a

Fix a file descriptor leak in mod_include.  When we include a
file, we use a sub-request, but we didn't destroy the sub-request
immediately, instead we waited until the original request was
done.  This patch closes the sub-request as soon as the data is
done being generated.

This passes all tests in the test suite.

Submitted by:	Brian Pane <bpane@pacbell.net>
Reviewed by:	Ryan Bloom and Cliff Woolley

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@91963 13f79535-47bb-0310-9956-ffa450edef68