From ed19e8a734cfcdaf3c5c937dc1bc14f1ffcfc504 Mon Sep 17 00:00:00 2001
From: Miguel Grinberg <miguel.grinberg@gmail.com>
Date: Thu, 21 May 2026 11:53:04 +0100
Subject: [PATCH] separate error arguments with a comma (Fixes #1594)

---
 src/ClientBuilder.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ClientBuilder.php b/src/ClientBuilder.php
index 52ac02770..d512d1eb6 100644
--- a/src/ClientBuilder.php
+++ b/src/ClientBuilder.php
@@ -173,7 +173,7 @@ public static function fromConfig(array $config, bool $quiet = false): Client
         }
 
         if ($quiet === false && count($config) > 0) {
-            $unknown = implode(array_keys($config));
+            $unknown = implode(", ", array_keys($config));
             throw new ConfigException("Unknown parameters provided: $unknown");
         }
         return $builder->build();