Remove useless use of $[, which was long deprecated and is an error with perl 5.12rc3.

Submitted by: Roderich Schupp <roderich schupp googlemail com>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@932791 13f79535-47bb-0310-9956-ffa450edef68