Hi, I want to backport "FSFS Packing of revision property shards" feature to my private subversion-1.6.x branch

[Kirby Zhou]

Hi, I want to backport "FSFS Packing of revision property shards"
feature to my private subversion-1.6.x branch
Anyone can help me to find out where is the patch?
I know it has a issue #3444
"http://subversion.tigris.org/issues/show_bug.cgi?id=3444";, but I do
not the related revision.