From 30b80f348968e5b9e0cb86d1933f33bccb980fbb Mon Sep 17 00:00:00 2001
From: cxgreat2014 <fwy1998@gmail.com>
Date: Wed, 4 Mar 2020 15:28:38 +0800
Subject: [PATCH] Use `tr '[:lower:]' '[:upper:]'` to upcase

---
 dnsapi/dns_ali.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dnsapi/dns_ali.sh b/dnsapi/dns_ali.sh
index 6936444e..d1f501d1 100755
--- a/dnsapi/dns_ali.sh
+++ b/dnsapi/dns_ali.sh
@@ -310,7 +310,7 @@ _ali_url_encode(){
         ;;
       #other hex
       *)
-        printf '%%%s' "$_hex_code" | tr 'a-z' 'A-Z'
+        printf '%%%s' "$_hex_code" | tr '[:lower:]' '[:upper:]'
         ;;
     esac
   done