mod_cache: Fix PR 15113, a core dump in cache_in_filter when
a redirect occurs. The code was passing a format string and
integer to apr_pstrcat. Changed to apr_psprintf. [Paul J. Reder]


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@97970 13f79535-47bb-0310-9956-ffa450edef68