Fix support for --self --name-only, fixes #8844

src/Composer/Command/ShowCommand.php

@@ -152,6 +152,10 @@ EOT
 
         if ($input->getOption('self')) {
             $package = $this->getComposer()->getPackage();
+            if ($input->getOption('name-only')) {
+                $io->write($package->getName());
+                return 0;
+            }
             $repos = $installedRepo = new ArrayRepository(array($package));
         } elseif ($input->getOption('platform')) {
             $repos = $installedRepo = $platformRepo;