[bug#46596] [PATCH] services: dovecot: Fix serialization of a free-form-args arguments.

[Alexey Abramov via Guix-patches via <guix-patches@gnu.org>]

* gnu/services/mail.scm (serialize-free-form-args): Change destination and
return a string containing the formated text.
---
 gnu/services/mail.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gnu/services/mail.scm b/gnu/services/mail.scm
index d68865bf9c..c7217bf1d9 100644
--- a/gnu/services/mail.scm
+++ b/gnu/services/mail.scm
@@ -159,7 +159,7 @@
 (define (serialize-free-form-args field-name val)
   (serialize-field field-name
                    (string-join
-                    (map (match-lambda ((k . v) (format #t "~a=~a" k v))) val)
+                    (map (match-lambda ((k . v) (format #f "~a=~a" k v))) val)
                     " ")))
 
 (define-configuration dict-configuration
-- 
2.30.0