From 954b687991a5c2fcb3cf235cbabcce3f30355c51 Mon Sep 17 00:00:00 2001
From: Boris Faure <billiob@gmail.com>
Date: Tue, 24 Jul 2018 19:40:23 +0200
Subject: [PATCH] better cleanup

---
 tools/scroll.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/scroll.sh b/tools/scroll.sh
index bde5b219..c7de5ebd 100755
--- a/tools/scroll.sh
+++ b/tools/scroll.sh
@@ -4,5 +4,5 @@ I=0
 while [ 1 ]; do
     sleep 1
     echo $I
-    I=$(($I + 1))
+    I=$((I + 1))
 done