[Tarantool-patches] [PATCH v6 13/25] Fix luacheck warnings in test/engine_long

[sergeyb@tarantool.org]

From: Sergey Bronnikov <sergeyb@tarantool.org>

Part of #4681

Reviewed-by: Vladislav Shpilevoy <v.shpilevoy@tarantool.org>
Reviewed-by: Igor Munkin <imun@tarantool.org>

Co-authored-by: Vladislav Shpilevoy <v.shpilevoy@tarantool.org>
Co-authored-by: Igor Munkin <imun@tarantool.org>
---
 test/engine_long/suite.lua | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/test/engine_long/suite.lua b/test/engine_long/suite.lua
index 9ac2bff9f..6fe25472c 100644
--- a/test/engine_long/suite.lua
+++ b/test/engine_long/suite.lua
@@ -2,7 +2,7 @@ local function string_function()
     local random_number
     local random_string
     random_string = ""
-    for x = 1,20,1 do
+    for _ = 1,20,1 do
         random_number = math.random(65, 90)
         random_string = random_string .. string.char(random_number)
     end
@@ -10,7 +10,6 @@ local function string_function()
 end
 
 function delete_replace_update(engine_name, iterations)
-    local string_value
     if (box.space._space.index.name:select{'tester'}[1] ~= nil) then
         box.space.tester:drop()
     end
@@ -69,7 +68,6 @@ function delete_replace_update(engine_name, iterations)
 end
 
 function delete_insert(engine_name, iterations)
-    local string_value
     if (box.space._space.index.name:select{'tester'}[1] ~= nil) then
         box.space.tester:drop()
     end
-- 
2.23.0