**Use case**

It prints:
```
ClickHouse has been successfully installed.

Start clickhouse-server with:
 sudo clickhouse start
```

But if clickhouse-server is already running, let's print:
```
ClickHouse has been successfully installed.

Restart clickhouse-server with:
 sudo clickhouse restart
```
else
        {
            fmt::print("Users config file {} already exists, will keep it and extract users info from it.\n", users_config_file.string());
            
            ConfigProcessor processor(users_config_file.string(),  false,  false);
            ConfigurationPtr configuration(new Poco::Util::XMLConfiguration(processor.processConfig()));
            if (!configuration->getString("users.default.password", "").empty()
                || !configuration->getString("users.default.password_sha256_hex", "").empty()
                || !configuration->getString("users.default.password_double_sha1_hex", "").empty())
            {
                has_password_for_default_user = true;
            }
        }
        
        if (fs::exists(log_path))
        {
            fmt::print("Log directory {} already exists.\n", log_path.string());
        }
        else
        {
            fmt::print("Creating log directory {}.\n", log_path.string());
            fs::create_directories(log_path);
        }
        if (fs::exists(data_path))
        {
            fmt::print("Data directory {} already exists.\n", data_path.string());
        }
        else
        {
            fmt::print("Creating data directory {}.\n", data_path.string());