Add in SeeRequestTail directive, to handle the shortcoming

of only storing 63 bytes of the request, when the requests
are longer than that and only vary towards the end; eg:

   GET /disk1/storage/apache/htdocs/images/image-store1/food/fruits/seeded/apples.jpg
   GET /disk1/storage/apache/htdocs/images/image-store1/food/fruits/seeded/pears.jpg
   GET /disk1/storage/apache/htdocs/images/image-store1/food/fruits/seeded/plums.jpg



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@590641 13f79535-47bb-0310-9956-ffa450edef68