From e71a53a49d80ba3cc72e678a00f50c2b5b7ca47e Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Wed, 10 Apr 2019 19:33:12 -0400
Subject: Add braces to param exps in arith substs

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

diff --git a/src/main.sh b/src/main.sh
index f83495c..75532d1 100644
--- a/src/main.sh
+++ b/src/main.sh
@@ -58,7 +58,7 @@ main()
 	load_locale
 
 	get_options "${@}"
-	shift $(($OPTIND - 1))
+	shift $((${OPTIND} - 1))
 
 	base_dir="${opt_b:-.}"
 
@@ -90,7 +90,7 @@ init_sigs()
 	# as in the following loop hack.
 	i=0
 	while [ ${i} -lt 127 ]; do
-		i=$(($i + 1))
+		i=$((${i} + 1))
 		sig="$(kill -l ${i} 2>/dev/null)" || continue
 		case "${sig}" in
 			'HUP' | 'INT' | 'QUIT' | 'ABRT' | 'ALRM' | 'TERM')
@@ -182,6 +182,6 @@ handle_sig()
 	if [ "x${exit_status:+set}" = 'xset' ]; then
 		exit ${exit_status}
 	else
-		exit $((128 + $sig))
+		exit $((128 + ${sig}))
 	fi
 }
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