Patch-Source: https://github.com/misterdanb/avizo/pull/66
--
From b59181e1332854f502440004041366d294ee74b2 Mon Sep 17 00:00:00 2001
From: Jakub Jirutka <jakub@jirutka.cz>
Date: Sat, 3 Feb 2024 22:14:23 +0100
Subject: [PATCH] Fix #48 bashism in lightctl

This was introduced in #44.
---
 lightctl | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/lightctl b/lightctl
index 43abe1d..f5333ae 100755
--- a/lightctl
+++ b/lightctl
@@ -109,19 +109,16 @@ elif command -v light >/dev/null; then
 		=) light $opts -S "$value";;
 	esac
 
-	light=$(light $opts -G)
+	light="$(light $opts -G)"
+	light="${light%.*}"  # strip decimal part
 else
 	die 'command not found: brightnessctl or light'
 fi
 
-if ! is_integer "$light" && ! is_float "$light"; then
+if ! is_integer "$light"; then
 	die "$prog returned invalid brigtness: '$light'"
 fi
 
-if is_float "$light"; then
-    light=${light/.*}
-fi
-
 if [ "$light" -le 33 ]; then
 	image='brightness_low'
 elif [ "$light" -le 66 ]; then