make ret variable in /builtin/mainmenu/tab_credits.lua local (#5942)

diff --git a/builtin/mainmenu/tab_credits.lua b/builtin/mainmenu/tab_credits.lua
index 0774433b658abd8b88c0cff1004a39c18e12b1af..b023522579854f0cdeb61b484fd596906bebeb21 100644 (file)
--- a/builtin/mainmenu/tab_credits.lua
+++ b/builtin/mainmenu/tab_credits.lua
@@ -74,7 +74,7 @@ local previous_contributors = {
 }
 
 local function buildCreditList(source)
-       ret = {}
+       local ret = {}
        for i = 1, #source do
                ret[i] = core.formspec_escape(source[i])
        end