bug#68648: 30.0.50; read-only-mode-hook's are not executed when buffer-read-only is t

[Stefan Monnier]

> On second thought, would it be okay to just call the mode hook where
> we set buffer-read-only in after-find-file?

It's probably an acceptable middle ground until someone goes through the
trouble of sorting out how to make the code call `read-only-mode`.
Even better if the `run-hooks` is accompanied with a FIXME explaining
that :-)


        Stefan