SECURITY: Eliminated leaks of several file descriptors to child

processes, such as CGI scripts.

PR: 17206
Submitted by:	Christian Kratzer <ck@cksoft.de>, Bjoern A. Zeeb <bz@zabbadoz.net>
Reviewed by:	Joe Orton, Will Rowe


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/APACHE_2_0_BRANCH@99033 13f79535-47bb-0310-9956-ffa450edef68