fixed CS

Author: fabpot

Normalizer/GetSetMethodNormalizer.php

@@ -79,7 +79,7 @@ public function denormalize($data, $class, $format = null)
                     $params[] = $data[$paramName];
                     // don't run set for a parameter passed to the constructor
                     unset($data[$paramName]);
-                } else if (!$constructorParameter->isOptional()) {
+                } elseif (!$constructorParameter->isOptional()) {
                     throw new RuntimeException(
                         'Cannot create an instance of '.$class.
                         ' from serialized data because its constructor requires '.