expose a helper function peel_to_type().

diff --git a/builtin-shortlog.c b/builtin-shortlog.c
index fa8bc7d02a2268d99dcc829cb3adbee10c949306..0055a57aeb24392de0dcf337bb93f30fceccd88f 100644 (file)
--- a/builtin-shortlog.c
+++ b/builtin-shortlog.c
@@ -136,7 +136,8 @@ static void get_from_rev(struct rev_info *rev, struct path_list *list)
 {
        struct commit *commit;
 
-       prepare_revision_walk(rev);
+       if (prepare_revision_walk(rev))
+               die("revision walk setup failed");
        while ((commit = get_revision(rev)) != NULL) {
                const char *author = NULL, *buffer;