Revert "Fix #796"

This reverts commit c434396.

Author: Vladimir I

doc/1.10/reference/reference_lua/net_box.rst

@@ -509,8 +509,7 @@ Below is a list of all ``net.box`` functions.
 
         * ``future:is_ready()`` which will return true
           when the result of the request is available,
-        * ``future:result()`` to get the result of the request (returns the
-        response or Nil in case it's not ready yet or there has been an error),
+        * ``future:result()`` to get the result of the request,
         * ``future:wait_result(timeout)`` to
           wait until the result of the request is available and then get it,
         * ``future:discard()`` to abandon the object.

locale/ru/LC_MESSAGES/doc.po

@@ -54138,11 +54138,8 @@ msgid ""
 msgstr "``future:is_ready()`` вернет true (правда), если доступен результат запроса,"
 
 #: ../doc/1.10/reference/reference_lua/net_box.rst:513
-msgid "``future:result()`` to get the result of the request (returns the "
-"response or Nil in case it's not ready yet or there has been an error),"
-msgstr "``future:result()`` используется для получения результата запроса "
-"(возвращает ответ на запрос или Nil в случае, если ответ еще не получен "
-"или произошла какая-либо ошибка),"
+msgid "``future:result()`` to get the result of the request,"
+msgstr "``future:result()`` используется для получения результата запроса,"
 
 #: ../doc/1.10/reference/reference_lua/net_box.rst:514
 msgid ""