Fix value quoting in src/Configure script for ap_config_auto.h

Submitted by: Paul Sutton <paul@awe.com>
Reviewed by: Ralf S. Engelschall


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@83106 13f79535-47bb-0310-9956-ffa450edef68