Re: shell-quote-argument: make it behave as if on Unix?

[Richard Stallman]

    > It strikes me that we should add to shell-quote-argument an optional
    > argument that will cause it to quote a shell argument for specific OS.
    > If the optional argument is omitted or nil, let it default to
    > system-type.
    >
    > What do you think?

    This sounds like a good idea.

It is more modular to keep this complexity within the Tramp module
rather than complicate other parts of Emacs.  So I'd rather you put
the code you want into Tramp.