Function spaces

utils/update-static-tests-data.js:45–47

(amount)

    return fs.writeFileSync(filename, data);
}
function spaces(amount) {
    return ' '.repeat(amount);
}
function die(errorMessage = undefined, code = 1) {
    const defaultMsg = 'Please specify correct format, e.g.: \n\n' +
        '    npm run static-updater binance BTC/USDT ETH/USDT\n' +