Denis Bitouzé <denis.bitouze@univ-littoral.fr> writes:

> Otherwise, all the options specified by `\lstset` can be applied as an
> option of the `lstlisting` environment:
>
>   ┌────
>   │ \begin{lstlisting}[language=⟨language⟩,...]
>   └────

This should be the safest and the least verbose.

I implemented the suggestion in the attached patch.
Let me know if it works for you.