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).

Author: stof

symfony/console/3.3/bin/console

@@ -23,8 +23,8 @@ if (!isset($_SERVER['APP_ENV'])) {
 }
 
 $input = new ArgvInput();
-$env = $input->getParameterOption(['--env', '-e'], $_SERVER['APP_ENV'] ?? 'dev');
-$debug = ($_SERVER['APP_DEBUG'] ?? ('prod' !== $env)) && !$input->hasParameterOption(['--no-debug', '']);
+$env = $input->getParameterOption(['--env', '-e'], $_SERVER['APP_ENV'] ?? 'dev', true);
+$debug = ($_SERVER['APP_DEBUG'] ?? ('prod' !== $env)) && !$input->hasParameterOption('--no-debug', true);
 
 if ($debug) {
     umask(0000);