Is installing `glibc-locales` necessary on GuixSD?

[Ada Stevenson <adanskana@gmail.com>]

Hi Guix!

Congratulations to everyone who worked on the core-updates merge!

A lot of things have changed though, and I was curious about this new 
message I've been getting whenever I invoke `guix`.

> hint: Consider installing the `glibc-locales' package and defining `GUIX_LOCPATH', along these lines:
> 
>      guix install glibc-locales
>      export GUIX_LOCPATH="$HOME/.guix-profile/lib/locale"
> 
> See the "Application Setup" section in the manual, for more info.

I've looked at the section in the manual, and it essentially reiterates 
the message here. For me, this is strange. The benefit of using GuixSD 
is that stuff like this is handled for me - things like search paths and 
the like that need to be taken care of separately on a foreign 
distribution are pre-configured here.

I feel like this new locale change should be one of these things that is 
handled by GuixSD, somehow incorporated into `%base-packages` and the 
environment variables set in the default `.profile` script like the 
other Guix specific env-vars.

What do you all think?

Warmly,
Ada