log_ref_setup(): improve robustness against races

diff --git a/Documentation/git-shortlog.txt b/Documentation/git-shortlog.txt
index 31af7f27360d277ccdc3e5bd59b4788c83934b8e..ee6c5476c1d2bf3b2a708e6152ebaba5882cc4f7 100644 (file)
--- a/Documentation/git-shortlog.txt
+++ b/Documentation/git-shortlog.txt
@@ -47,6 +47,10 @@ OPTIONS
 
        Each pretty-printed commit will be rewrapped before it is shown.
 
+-c::
+--committer::
+       Collect and show committer identities instead of authors.
+
 -w[<width>[,<indent1>[,<indent2>]]]::
        Linewrap the output by wrapping each line at `width`.  The first
        line of each entry is indented by `indent1` spaces, and the second