Re: scheme.el bug & fix

[Richard Stallman]

    Note that with-syntax-table was introduced in Emacs-21, so it's
    rarely used in external packages (most packages try to maintain
    compatibility with Emacs-20, and most package writers learn
    new macros rather slowly).

Gerd said there may have been an XEmacs compatibility issue.
Perhaps people have written code for XEmacs which assumes
with-syntax-table copies the syntax table.

But I suspect that the amount of such code is small, and that this
change is ok.