Method find

programs/git-import/git-import.cpp:642–651

    }

    const Commit * find(uint32_t num)
    {
        walk(num);

//        std::cerr << "current_idx: " << current_idx << ", num: " << num << "\n";

        if (current_idx == num && it != lines.end())
            return &*it;
        return {};
    }

    void addLine(uint32_t num, Commit commit)
    {