The Windows MPM was sometimes returning APR_NOTFOUND when it should

have been returning APR_ENOFILE.  This fixes that problem.
Submitted by:	Gregory Nicholls <gnicholls@level8.com>
Reviewed by:	Ryan Bloom


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@85891 13f79535-47bb-0310-9956-ffa450edef68