From 707723990d1b3ba15ef0a9b0787e4794daa924ea Mon Sep 17 00:00:00 2001
From: slowpeek <slowpeek@users.noreply.github.com>
Date: Tue, 30 Jan 2024 14:56:38 +0200
Subject: [PATCH] Small improvement

---
 hddtemp-lt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hddtemp-lt b/hddtemp-lt
index 3e93215..f6799f4 100755
--- a/hddtemp-lt
+++ b/hddtemp-lt
@@ -151,7 +151,7 @@ main() {
                 shift ;;
 
             -u|--units)
-                [[ $2 == @(C|F) ]] ||
+                [[ $2 == [CF] ]] ||
                     bye "The only valid values for $1 are 'C' and 'F'"
 
                 units=$2