Fix builtin lua function os.tempfolder (#7368)

* Fix builtin lua function os.tempfolder

diff --git a/builtin/mainmenu/common.lua b/builtin/mainmenu/common.lua
index 7c0cbae4d6152804ec53bf93eb7f07fc677dfed5..cd4903f56ce8cde6c81ef6b1ecfa29a9605fbda0 100644 (file)
--- a/builtin/mainmenu/common.lua
+++ b/builtin/mainmenu/common.lua
@@ -172,14 +172,9 @@ os.tempfolder = function()
        os.remove(filetocheck)
 
        local randname = "MTTempModFolder_" .. math.random(0,10000)
-       if DIR_DELIM == "\\" then
-               local tempfolder = os.getenv("TEMP")
-               return tempfolder .. filetocheck
-       else
-               local backstring = filetocheck:reverse()
-               return filetocheck:sub(0,filetocheck:len()-backstring:find(DIR_DELIM)+1) ..randname
-       end
-
+       local backstring = filetocheck:reverse()
+       return filetocheck:sub(0, filetocheck:len() - backstring:find(DIR_DELIM) + 1) ..
+               randname
 end
 
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