pack-objects: use bitfield for object_entry::depth

diff --git a/Documentation/git-filter-branch.txt b/Documentation/git-filter-branch.txt
index 3a52e4dce39eeaf6eba896ccbf9e0505cebb3ec9..b634043183b453a89b3f56e0544503b06ccdbdec 100644 (file)
--- a/Documentation/git-filter-branch.txt
+++ b/Documentation/git-filter-branch.txt
@@ -222,6 +222,14 @@ this purpose, they are instead rewritten to point at the nearest ancestor that
 was not excluded.
 
 
+EXIT STATUS
+-----------
+
+On success, the exit status is `0`.  If the filter can't find any commits to
+rewrite, the exit status is `2`.  On any other error, the exit status may be
+any other non-zero value.
+
+
 Examples
 --------