Fix code style

Author: djairhogeuens

src/JsonMapper.php

@@ -301,7 +301,8 @@ public function map($json, $object)
                 // but only a flat type (i.e. string, int)
                 if ($this->bStrictObjectTypeChecking
                     && !is_subclass_of($type, \BackedEnum::class)
-                    && (!is_subclass_of($type, \DateTimeInterface::class) || !$this->isSafeDateTime($jvalue))
+                    && (!is_subclass_of($type, \DateTimeInterface::class)
+                        || !$this->isSafeDateTime($jvalue))
                 ) {
                     throw new JsonMapper_Exception(
                         'JSON property "' . $key . '" must be an object, '
@@ -456,7 +457,8 @@ public function mapArray(
                         $array[$key] = $jvalue;
                     } else if ($this->bStrictObjectTypeChecking
                         && !is_subclass_of($class, \BackedEnum::class)
-                        && (!is_subclass_of($class, \DateTimeInterface::class) || !$this->isSafeDateTime($jvalue))
+                        && (!is_subclass_of($class, \DateTimeInterface::class)
+                            || !$this->isSafeDateTime($jvalue))
                     ) {
                         throw new JsonMapper_Exception(
                             'JSON property'