mod_autoindex has a small bug when calling ap_readdir. This was

causing empty indexes to be created. The following patch fixes
this problem
Submitted by:	Paul Reder
Reviewed by:	Bill Stoddard


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@84111 13f79535-47bb-0310-9956-ffa450edef68