From 282f0fc0cebef29b79f89e918e20b4af0f5a1d77 Mon Sep 17 00:00:00 2001
From: Marcus Bointon <marcus@synchromedia.co.uk>
Date: Tue, 13 Oct 2020 12:25:21 +0200
Subject: [PATCH] array_key_exists is clearer here

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

diff --git a/src/PHPMailer.php b/src/PHPMailer.php
index f9498b1b..27e6a8d0 100644
--- a/src/PHPMailer.php
+++ b/src/PHPMailer.php
@@ -2117,7 +2117,7 @@ class PHPMailer
             'am' => 'hy',
         ];
 
-        if (isset($renamed_langcodes[$langcode])) {
+        if (array_key_exists($langcode, $renamed_langcodes)) {
             $langcode = $renamed_langcodes[$langcode];
         }