ENGCOM-1717: set correct annotation #15602

Author: Stanislav Idolov

lib/internal/Magento/Framework/Stdlib/DateTime/Timezone.php

@@ -286,8 +286,8 @@ public function isScopeDateInInterval($scope, $dateFrom = null, $dateTo = null)
      * @param string|\DateTimeInterface $date
      * @param int $dateType
      * @param int $timeType
-     * @param null $locale
-     * @param null $timezone
+     * @param string|null $locale
+     * @param string|null $timezone
      * @param string|null $pattern
      * @return string
      */

lib/internal/Magento/Framework/Stdlib/DateTime/TimezoneInterface.php

@@ -124,8 +124,8 @@ public function isScopeDateInInterval($scope, $dateFrom = null, $dateTo = null);
      * @param string|\DateTimeInterface $date
      * @param int $dateType
      * @param int $timeType
-     * @param null $locale
-     * @param null $timezone
+     * @param string|null $locale
+     * @param string|null $timezone
      * @param string|null $pattern
      * @return string
      */