Simply display zero if it's less or equals to 0.
if (config().getBool("highlight", true))
        highlight_callback = highlight;
    ReplxxLineReader lr(*suggest, history_file, config().has("multiline"), query_extenders, query_delimiters, highlight_callback
#else
    LineReader lr(history_file, config().has("multiline"), query_extenders, query_delimiters
#endif
    /// Enable bracketed-paste-mode so that we are able to paste multiline queries as a whole.
    lr.enableBracketedPaste(
    do
    {
        auto input = lr.readLine(prompt(), ":-] "
        if (input.empty())
            break;
        has_vertical_output_suffix = false;
        if (input.ends_with("\\G") || input.ends_with("\\G;"))
        {
            if (input.ends_with("\\G"))
                input.resize(input.size() - 2
            else if (input.ends_with("\\G;"))
                input.resize(input.size() - 3
            has_vertical_output_suffix = true;
        }
        for (const auto& [alias, command] : backslash_aliases)
        {
            auto it = std::search(input.begin(), input.end(), alias.begin(), alias.end()
            if (it != input.end() && std::all_of(input.begin(), it, isWhitespaceASCII))
            {
                it += alias.size(
                if (it == input.end() || isWhitespaceASCII(*it))
                {