fmt-merge-msg: avoid leaking strbuf in shortlog()

diff --git a/builtin/update-index.c b/builtin/update-index.c
index f3f07e7f1cb2d952144bf98969b481dc331155bf..d530e89368b42bf1465784b80163b9158a06585a 100644 (file)
--- a/builtin/update-index.c
+++ b/builtin/update-index.c
@@ -1012,6 +1012,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
        /* We can't free this memory, it becomes part of a linked list parsed atexit() */
        lock_file = xcalloc(1, sizeof(struct lock_file));
 
+       /* we will diagnose later if it turns out that we need to update it */
        newfd = hold_locked_index(lock_file, 0);
        if (newfd < 0)
                lock_error = errno;