fs.lua: Make local values local
fs.lua: Make local values local

Signed-off-by: Petr Štetiar <f0d4d86d9c7002e67e6ae7bb5596bc0afa7b4c3a@true.cz>

ddysher/turbo,YuanPeir-Chen/turbo-support-mipsel,zcsteele/turbo,ddysher/turbo,luastoned/turbo,YuanPeir-Chen/turbo-support-mipsel,luastoned/turbo,kernelsauce/turbo,zcsteele/turbo,mniestroj/turbo