Update notes for submitted changes

* Break down DfsBlockCache stats by pack file extension.

15/9da6dacc6b60fde77cf10e82312a277c787a3f

@@ -0,0 +1,7 @@
+Verified+1: Hudson CI
+Code-Review+2: Shawn Pearce <spearce@spearce.org>
+Submitted-by: Shawn Pearce <spearce@spearce.org>
+Submitted-at: Tue, 28 Nov 2017 15:37:30 -0500
+Reviewed-on: https://git.eclipse.org/r/112391
+Project: jgit/jgit
+Branch: refs/heads/master