bug#47776: [PATCH] import: go: Fix goproxy option argument's format.

[Ludovic Courtès]

Hi,

Z572 <873216071@qq.com> skribis:

>>From e34f281d39f9b1e247fa649a15657da70f2b548d Mon Sep 17 00:00:00 2001
> From: Zheng Junjie <873216071@qq.com>
> Date: Wed, 14 Apr 2021 22:37:50 +0800
> Subject: [PATCH] import: go: Fix goproxy option argument's format.
>
> Commit a8b927a562 Added new procedure go-module-available-versions use
> 'string-append' to GOPROXY, but 'string->symbol' let GOPROXY is a symbol (it
> must be a string), which would lead to wrong-type-arg errors in the
> 'string-append' procedure.
>
> * guix/scripts/import/go.scm (%options)[goproxy]: Remove call to
> 'string->symbol'.

Applied, thanks!

Ludo’.