updated composer

vendor/symfony/var-dumper/Command/ServerDumpCommand.php

@@ -58,7 +58,7 @@ class ServerDumpCommand extends Command
 
         $this
             ->addOption('format', null, InputOption::VALUE_REQUIRED, sprintf('The output format (%s)', $availableFormats), 'cli')
-            ->setDescription('Starts a dump server that collects and displays dumps in a single place')
+            ->setDescription('Start a dump server that collects and displays dumps in a single place')
             ->setHelp(<<<'EOF'
 <info>%command.name%</info> starts a dump server that collects and displays
 dumps in a single place for debugging you application:
@@ -95,5 +95,7 @@ EOF
         $this->server->listen(function (Data $data, array $context, int $clientId) use ($descriptor, $io) {
             $descriptor->describe($io, $data, $context, $clientId);
         });
+
+        return 0;
     }
 }