[PSR4] Fix extra slash in NormalizeNamespaceByPSR4ComposerAutoloadRector

packages/PSR4/src/Rector/Namespace_/NormalizeNamespaceByPSR4ComposerAutoloadRector.php

@@ -118,6 +118,9 @@ final class NormalizeNamespaceByPSR4ComposerAutoloadRector extends AbstractRecto
         $psr4Autoloads = $this->psR4AutoloadPathsProvider->provide();
 
         foreach ($psr4Autoloads as $namespace => $path) {
+            // remove extra slash
+            $path = rtrim($path, '/');
+
             if (Strings::startsWith($smartFileInfo->getRelativeDirectoryPath(), $path)) {
                 $expectedNamespace = $namespace . $this->resolveExtraNamespace($smartFileInfo, $path);
 

rector.yaml

@@ -1,3 +1,6 @@
+services:
+    Rector\PSR4\Rector\Namespace_\NormalizeNamespaceByPSR4ComposerAutoloadRector: ~
+
 parameters:
     exclude_paths:
         - "/Fixture/"