Updated patch to fix compile warnings from not including apr_strings.h

Submitted by:	Joe Orton <joe@orton.demon.co.uk>
Reviewed by:	Bill Stoddard


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@86029 13f79535-47bb-0310-9956-ffa450edef68