From eb6395a62cbeb92b08da23b681a95eab3b847bae Mon Sep 17 00:00:00 2001
From: neil <github@neilpang.com>
Date: Tue, 9 Nov 2021 11:48:58 +0800
Subject: [PATCH] Update mail.sh

---
 notify/mail.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/notify/mail.sh b/notify/mail.sh
index 584d650f..656dd371 100644
--- a/notify/mail.sh
+++ b/notify/mail.sh
@@ -62,7 +62,7 @@ mail_send() {
   fi
 
   contenttype="text/plain; charset=utf-8"
-  subject="=?UTF-8?B?$(printf "%b" "$_subject" | _base64)?="
+  subject="=?UTF-8?B?$(printf -- "%b" "$_subject" | _base64)?="
   result=$({ _mail_body | eval "$(_mail_cmnd)"; } 2>&1)
 
   # shellcheck disable=SC2181