minor #1128 Improve the console script (stof)

This PR was merged into the 3.4 branch.

Discussion
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Improve the console script

- look for the `--env` and `--no-debug` only before a `--` separator, to respect the support for `--`
- avoid passing an empty string as parameter option name (which would never match anyway, but causes php warning is some Symfony versions instead of being ignored silently, because of symfony/symfony#26136).

Same change than symfony/recipes#367

Commits
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126ce57 Improve the console script

Author: stof

bin/console

@@ -15,8 +15,8 @@ set_time_limit(0);
 require __DIR__.'/../vendor/autoload.php';
 
 $input = new ArgvInput();
-$env = $input->getParameterOption(['--env', '-e'], getenv('SYMFONY_ENV') ?: 'dev');
-$debug = getenv('SYMFONY_DEBUG') !== '0' && !$input->hasParameterOption(['--no-debug', '']) && $env !== 'prod';
+$env = $input->getParameterOption(['--env', '-e'], getenv('SYMFONY_ENV') ?: 'dev', true);
+$debug = getenv('SYMFONY_DEBUG') !== '0' && !$input->hasParameterOption('--no-debug', true) && $env !== 'prod';
 
 if ($debug) {
     Debug::enable();