Piped error logs could cause a segfault if an error occured

during configuration after a restart.

PR:		4456
Submitted by:	Aidan Cully <aidan@panix.com>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@83262 13f79535-47bb-0310-9956-ffa450edef68