* Fix potential memory leaks in deflate_out_filter if bailing out due to an

  error (either in the lower filter chain or during a libz operation). We need
  to call deflateEnd as it is very likely that this filter is never called
  again to ensures that libz's internal structures get cleaned properly.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@422736 13f79535-47bb-0310-9956-ffa450edef68