Revert "lua: fix my previous commit (missing '()')."
Revert "Lua: fix the remaining scripts."

This reverts commit dd9997bc.
This reverts commit 5c29e5fc.
(cherry picked from commit 9f587084421383e9fc8f6b82909cb37d07063f32)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>