diff-delta: set size out-parameter to 0 for NULL delta

diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt
index 774cecc7ede787d22da5b656fe5299e4830d1d2e..6dcd39f6f63dca79f7bc324874e3a4a6172bb688 100644 (file)
--- a/Documentation/git-for-each-ref.txt
+++ b/Documentation/git-for-each-ref.txt
@@ -214,6 +214,11 @@ symref::
        `:lstrip` and `:rstrip` options in the same way as `refname`
        above.
 
+worktreepath::
+       The absolute path to the worktree in which the ref is checked
+       out, if it is checked out in any linked worktree. Empty string
+       otherwise.
+
 In addition to the above, for commit and tag objects, the header
 field names (`tree`, `parent`, `object`, `type`, and `tag`) can
 be used to specify the value in the header field.