bug#46852: doc: Fix reference to the bind package variable name

[Maxim Cournoyer]

Hello,

Luis Felipe <luis.felipe.la@protonmail.com> writes:

> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
> On Tuesday, March 2, 2021 11:53 PM, Tobias Geerinckx-Rice <me@tobias.gr> 
> wrote:
>
>> Leo!
>>
>> Leo Famulari 写道：
>>
>> > Is there a reason for this change?
>
> Oh, I should have said so in the commit message, sorry. The reason is
> that if I add (list bind "utils") to the packages field in my
> operating system definition, reconfiguring the system fails because
> "bind" is a built-in Guile procedure, and so the package variable for
> BIND is called "isc-bind" to avoid that conflict.

Applied as 0b5120fb03db5226871b3482a72b1e6fdaa59ead, thank you!

And thanks to Leo and Tobias for getting the matter clarified :-).

Closing,

Maxim