add git-annex-filter-branch man page to cabal tarball

forgot to do this earlier

diff --git a/git-annex.cabal b/git-annex.cabal
index c166872a043a4d65ff1ac5cadb7f5379b4e22f1b..bf6df7557e5ea8c88a88c0dac270299b1f5eb4a0 100644 (file)
--- a/git-annex.cabal
+++ b/git-annex.cabal
@@ -64,6 +64,7 @@ Extra-Source-Files:
   doc/git-annex-examinekey.mdwn
   doc/git-annex-expire.mdwn
   doc/git-annex-export.mdwn
+  doc/git-annex-filter-branch.mdwn
   doc/git-annex-find.mdwn
   doc/git-annex-findref.mdwn
   doc/git-annex-fix.mdwn