Method ClearLog

src/third-party/imgui/imgui_demo.cpp:6499–6504

    static void  Strtrim(char* s)                                { char* str_end = s + strlen(s); while (str_end > s && str_end[-1] == ' ') str_end--; *str_end = 0; }

    void    ClearLog()
    {
        for (int i = 0; i < Items.Size; i++)
            free(Items[i]);
        Items.clear();
    }

    void    AddLog(const char* fmt, ...) IM_FMTARGS(2)
    {