commit: use commit_list_append() instead of duplicating its code

Signed-off-by: Rene Scharfe <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: rscharfe

commit.c

@@ -447,12 +447,7 @@ struct commit_list *copy_commit_list(struct commit_list *list)
 	struct commit_list *head = NULL;
 	struct commit_list **pp = &head;
 	while (list) {
-		struct commit_list *new;
-		new = xmalloc(sizeof(struct commit_list));
-		new->item = list->item;
-		new->next = NULL;
-		*pp = new;
-		pp = &new->next;
+		pp = commit_list_append(list->item, pp);
 		list = list->next;
 	}
 	return head;