Merge branch 'rs/list-objects-filter-leakfix'

Leakfix.

* rs/list-objects-filter-leakfix:
  list-objects-filter: plug combine_filter_data leak
diff --git a/list-objects-filter.c b/list-objects-filter.c
index 1c1ee3d..b954354 100644
--- a/list-objects-filter.c
+++ b/list-objects-filter.c
@@ -709,6 +709,7 @@ static void filter_combine__free(void *filter_data)
 			BUG("expected oidset to be cleared already");
 	}
 	free(d->sub);
+	free(d);
 }
 
 static void add_all(struct oidset *dest, struct oidset *src) {