Fix coding style

Author: Hugo Santiago Becerra Adán

src/Flex.php

@@ -262,7 +262,7 @@ public function configureProject(Event $event)
 
         // 'name' and 'description' are only required for public packages
         // don't use $manipulator->removeProperty() for BC with Composer 1.0
-        $contents = preg_replace(['{^\s*+"(?:name)":.*,$\n}m', '{^\s*+"(?:description)":.*,$\n}m',], '', $manipulator->getContents(), 1);
+        $contents = preg_replace(['{^\s*+"(?:name)":.*,$\n}m', '{^\s*+"(?:description)":.*,$\n}m'], '', $manipulator->getContents(), 1);
         file_put_contents($json->getPath(), $contents);
 
         $this->updateComposerLock();