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

[Z572]

>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'.
---
 guix/scripts/import/go.scm | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/guix/scripts/import/go.scm b/guix/scripts/import/go.scm
index 04b07f80cc..74e8e60cce 100644
--- a/guix/scripts/import/go.scm
+++ b/guix/scripts/import/go.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2020 Katherine Cox-Buday <cox.katherine.e@gmail.com>
 ;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2021 Zheng Junjie <873216071@qq.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -68,9 +69,7 @@ that are not yet in Guix"))
                    (alist-cons 'recursive #t result)))
          (option '(#\p "goproxy") #t #f
                  (lambda (opt name arg result)
-                   (alist-cons 'goproxy
-                               (string->symbol arg)
-                               (alist-delete 'goproxy result))))
+                   (alist-cons 'goproxy arg (alist-delete 'goproxy result))))
          (option '("pin-versions") #f #f
                  (lambda (opt name arg result)
                    (alist-cons 'pin-versions? #t result)))
-- 
2.31.1