Laravel 5 single log file name change

app.php

<?php
# CUSTOM DAILY LOG
// $app->configureMonologUsing(function($monolog) use ($app) {
//     $monolog->pushHandler(
//         (new Monolog\Handler\RotatingFileHandler(
//         // Set the log path
//             $app->storagePath().'/logs/app_error.log',
//             // Set the number of daily files you want to keep
//             $app->make('config')->get('app.log_max_files', 30)
//         ))->setFormatter(new Monolog\Formatter\LineFormatter(null, null, true, true))
//     );
// });

# SINGLE LOG
$app->configureMonologUsing(function($monolog) use ($app) {
    $handler = new Monolog\Handler\StreamHandler($app->storagePath().'/logs/app_error.log');
    $handler->setFormatter(new \Monolog\Formatter\LineFormatter(null, null, true, true));
    $monolog->pushHandler($handler);
});