bug#24786: 25.1; Misleading documentation/news for text-quoting-style

[Vasilij Schneidermann]

I've just fixed a complex Emacs Lisp program using `error' in batch mode
where messages of the "Exception: 'foo'" kind were turned into
"Exception: ‘foo’", leading to a crash in the test rig written in as it
did not expect non-ASCII output.  I find this inacceptable behavior.
Why should printing one thing print something entirely different from
what has been specified?

I've learned that there is a `text-quoting-style' variable that controls
this behavior, however both its docstring and the corresponding news
entry suggest that there is no way to disable the post-processing.  On
top of that they don't mention that the simplest way to make things look
like they previously did is to set it to `grave`.  Is there any reason
this is not documented?  More importantly, if that is the truth, why is
there no flag to disable that post-processing?