improve comment
diff --git a/lib/commit_graph.c b/lib/commit_graph.c
index eb9d8bd..9f0c3c9 100644
--- a/lib/commit_graph.c
+++ b/lib/commit_graph.c
@@ -153,11 +153,9 @@ add_node_to_iter_list(struct got_commit_graph *graph,
}
/*
- * If a child node is known, being looping over the list there
- * instead of from the list head.
- * All parent commits *should* appear before their children unless
- * commit timestamps are broken (in which case the ordering of
- * commits will be broken in some way in any case).
+ * If a child node is known, begin looping over the list there
+ * instead of beginning from the list head. Parent commits are
+ * traversed before their children.
*/
n = child_node ? child_node : TAILQ_FIRST(&graph->iter_list);