bug #17505 sort bundles in config:dump-reference command (xabbuh)

This PR was merged into the 2.3 branch.

Discussion
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sort bundles in config:dump-reference command

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |

This backports #17495 to the `2.3` branch.

Commits
-------

a5c8811 sort bundles in config:dump-reference command

Author: fabpot

src/Symfony/Bundle/FrameworkBundle/Command/ConfigDumpReferenceCommand.php

@@ -66,6 +66,11 @@ protected function execute(InputInterface $input, OutputInterface $output)
 
         if (empty($name)) {
             $output->writeln('Available registered bundles with their extension alias if available:');
+
+            usort($bundles, function($bundleA, $bundleB) {
+                return strcmp($bundleA->getName(), $bundleB->getName());
+            });
+
             foreach ($bundles as $bundle) {
                 $extension = $bundle->getContainerExtension();
                 $output->writeln($bundle->getName().($extension ? ': '.$extension->getAlias() : ''));