From c9412e395de0b34456fc6bf78146575f66c02976 Mon Sep 17 00:00:00 2001
From: Richard Soderberg <rsoderberg@gmail.com>
Date: Mon, 21 Sep 2015 12:51:18 -0700
Subject: [PATCH] workaround bash 4.2- not having unset A[-1] support

---
 cipherscan | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/cipherscan b/cipherscan
index b7d0d1a..13fa067 100755
--- a/cipherscan
+++ b/cipherscan
@@ -1915,8 +1915,9 @@ if (( $# < 1 )); then
 fi
 
 PARAMS=("$@")
-TARGET=${PARAMS[-1]}
-unset PARAMS[-1]
+last_element="$(( $# - 1 ))"
+TARGET=${PARAMS[$last_element]}
+unset PARAMS[$last_element]
 
 # Refuse to proceed if the hostname starts with a hyphen, since hostnames can't
 # begin with a hyphen and this likely means we accidentally parsed an option as