in the commit (as opposed to just listing the files which are
different from the commit's first parent).
+--anonymize::
+ Replace all refnames, paths, blob contents, commit and tag
+ messages, names, and email addresses in the output with
+ anonymized data, while still retaining the shape of history and
+ of the stored tree.
+
--refspec::
Apply the specified refspec to each ref exported. Multiple of them can
be specified.