Merge r757741 from trunk:

* Fix a memory leak by freeing the memory consumed by the bucket.

PR: 44948
Submitted by: Dan Poirier <poirier pobox.com>
Reviewed by: rpluem

Submitted by: rpluem
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@766002 13f79535-47bb-0310-9956-ffa450edef68