From 23b80425a3df82718bd03a290b937cd99da1b09c Mon Sep 17 00:00:00 2001
From: Boris Faure <billiob@gmail.com>
Date: Tue, 24 Jul 2018 13:20:09 +0200
Subject: [PATCH] tools/scroll.sh: do not use expr

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

diff --git a/tools/scroll.sh b/tools/scroll.sh
index 187b1d83..bde5b219 100755
--- a/tools/scroll.sh
+++ b/tools/scroll.sh
@@ -4,5 +4,5 @@ I=0
 while [ 1 ]; do
     sleep 1
     echo $I
-    I=`expr $I + 1`
+    I=$(($I + 1))
 done