Sergey,

This patch refactors the aforementioned test to make its code style
closer to ours.

Relates to tarantool/tarantool#9398
---

 test/LuaJIT-tests/trace/stack_purge.lua | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/test/LuaJIT-tests/trace/stack_purge.lua b/test/LuaJIT-tests/trace/stack_purge.lua
index 6d2876af..e4108b20 100644
--- a/test/LuaJIT-tests/trace/stack_purge.lua
+++ b/test/LuaJIT-tests/trace/stack_purge.lua
@@ -11,11 +11,11 @@ local function b()
 end
 
 local function c()
-  for j=1,10 do
-    for i=1,50 do b() b() b() end
+  for _ = 1, 10 do
+    for _ = 1, 50 do b() b() b() end
     collectgarbage()
     local t = {}
-    for i=1,50 do t = {t} end
+    for _ = 1, 50 do t = {t} end
   end
 end