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+-- Lua 5.1 forward-compatibility layer.
+-- For background see https://github.com/neovim/neovim/pull/9280
+--
+-- Reference the lua-compat-5.2 project for hints:
+-- https://github.com/keplerproject/lua-compat-5.2/blob/c164c8f339b95451b572d6b4b4d11e944dc7169d/compat52/mstrict.lua
+-- https://github.com/keplerproject/lua-compat-5.2/blob/c164c8f339b95451b572d6b4b4d11e944dc7169d/tests/test.lua
+
+local lua_version = _VERSION:sub(-3)
+
+if lua_version >= '5.2' then
+ unpack = table.unpack -- luacheck: ignore 121 143
+end