bug#33264: Whitelist vc-follow-symlinks as a safe file variable

[Dmitry Gutov]

On 10.07.2019 16:11, Lars Ingebrigtsen wrote:
> "Eugene J." <w3techplayground@gmail.com> writes:
>
> > It is useful to have directory local `vc-follow-symlinks` with value
> > `nil` when you have to use symlink paths in a particular case while
> > having it `ask` or `t` as a default.  Marking the variable as "safe
> > file variable" will reduce the friction.
>
> That seems reasonable.  Does anybody else object to marking this
> variable as a safe file variable?

Sounds good to me.

I've tried to imagine a security issue stemming from it (e.g. linking to 
an external directory tree with its own dir-locals values, and then... 
what?), but didn't really come up with anything significant.