bug#39912: "Probably introduced at or before Emacs version ..." link should open NEWS read-only

[Lars Ingebrigtsen]

Andreas Schwab <schwab@linux-m68k.org> writes:

> On Sep 07 2020, Lars Ingebrigtsen wrote:
>
>> Hm...  I just tried the same (I've never actually clicked on one of
>> those links before :-)), and I popped to the NEWS.22 file, and it wasn't
>> read-only here.  (This is with the current trunk, and emacs -Q.)
>
> That's because it is writable for you.  That won't happen with an
> ordinarily installed Emacs.

Ah, make sense.  So this isn't a problem that exists in the distributed
version of Emacs (unless you're root), but it exists when people compile
Emacs themselves (and don't install).

In any case, I think the suggested fix here sounds good -- clicking the
button should switch on view-mode after loading the NEWS file.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no