get Apache building again after the change to make_exports.awk

yeah, I know, this shouldn't be necessary.  you're preaching to the choir.
but this does the job until make_exports.awk gets slightly more robust.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@87929 13f79535-47bb-0310-9956-ffa450edef68