From 44e452fb3c8cc7a093d72fbc280be3973e627a62 Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Fri, 19 Apr 2019 21:26:04 -0400
Subject: Add braces to param exps in arith substs

---
(limited to 'src/substvars.sh')

diff --git a/src/substvars.sh b/src/substvars.sh
index c2bc3f8..38661c1 100644
--- a/src/substvars.sh
+++ b/src/substvars.sh
@@ -94,7 +94,7 @@ substvars()
 		name="$(printf '%s\n' "${name}" | tr 'A-Z-' 'a-z_')"
 		value="$(eval "printf '%s\n' \"\${substvar_${name}}\"")"
 		string="${lhs}${value}${rhs}"
-		depth=$(($depth + 1))
+		depth=$((${depth} + 1))
 	done
 
 	printf '%s\n' "${string}"
--
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