sync cs-fixer rules with client-common

php-http/client-common#120

Author: dbu

.php_cs.dist

@@ -12,7 +12,12 @@ $finder = PhpCsFixer\Finder::create()
 ;
 return PhpCsFixer\Config::create()
     ->setRules([
-         '@Symfony' => true,
-         'array_syntax' => ['syntax' => 'short'],
+        '@PSR2' => true,
+        '@Symfony' => true,
+        'array_syntax' => [
+            'syntax' => 'short',
+        ],
+        'no_empty_phpdoc' => true,
+        'no_superfluous_phpdoc_tags' => true,
     ])
     ->setFinder($finder);