From f9f9787aa08f519b3df9953a6b8877f7e65950f0 Mon Sep 17 00:00:00 2001
Message-Id: <f9f9787aa08f519b3df9953a6b8877f7e65950f0.1717745693.git.mdw@distorted.org.uk>
From: Mark Wooding <mdw@chiark.greenend.org.uk>
Date: Wed, 14 Jan 2015 14:24:47 +0000
Subject: [PATCH] hush.in: Use `$' prefixes on variables in arithmetic
 expansions.
Organization: Straylight/Edgeware

From: Mark Wooding <mdw@distorted.org.uk>

Omitting this is a Bashism, but one apparently permitted by Dash.
---
 hush.in | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/hush.in b/hush.in
index d5aebcb..2752cdf 100755
--- a/hush.in
+++ b/hush.in
@@ -167,16 +167,16 @@ exec 3>&-
 nlog=0
 for i in "$logdir/$tag".*; do
   if [ ! -f "$i" ]; then continue; fi
-  nlog=$(( nlog + 1 ))
+  nlog=$(( $nlog + 1 ))
 done
 
 ## If there are too many, go through and delete some early ones.
 if [ $nlog -gt $maxlog ]; then
-  n=$(( nlog - maxlog ))
+  n=$(( $nlog - $maxlog ))
   for i in "$logdir/$tag".*; do
     if [ ! -f "$i" ]; then continue; fi
     rm -f "$i"
-    n=$(( n - 1 ))
+    n=$(( $n - 1 ))
     if [ $n -eq 0 ]; then break; fi
   done
 fi
-- 
[mdw]