Merge help and --help arms of match expression

Author: 0xEAB

tools/ddct-src/App.php

@@ -51,8 +51,7 @@ private function runCommand(int $argc, array $argv): int
             'generate' => $this->generate($argc, $argv),
             'generate-all' => $this->generateAll($argc, $argv),
             'has-built' => $this->hasBuilt($argc, $argv),
-            'help' => $this->help($argc, $argv),
-            '--help' => $this->help($argc, $argv),
+            'help', '--help' => $this->help($argc, $argv),
             'namespace-copy' => $this->namespaceCopy($argc, $argv),
             'namespace-echo' => $this->namespaceEcho($argc, $argv),
             'namespace-publish' => $this->namespacePublish($argc, $argv),