From b3004a65e3dd47433d37cd2b275713404f10c13c Mon Sep 17 00:00:00 2001
From: "martin f. krafft" <madduck@madduck.net>
Date: Sun, 16 Mar 2008 08:56:50 +0100
Subject: [PATCH] * Prevent set -u from falling over unset SSH_CONNECTION
 variable   (closes: #471129).

---
 shutdown | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/shutdown b/shutdown
index 29bd8fe..0c52d92 100755
--- a/shutdown
+++ b/shutdown
@@ -91,7 +91,7 @@ test -t 0                    || do_real_cmd
 # was created by sshd.
 PTS=$(readlink /proc/$$/fd/0)
 if ! pgrep -f "^sshd.+${PTS#/dev/}[[:space:]]*$" >/dev/null \
-  && [ -z "$SSH_CONNECTION" ]; then
+  && [ -z "${SSH_CONNECTION:-}" ]; then
     if [ $PRETEND_SSH -eq 1 ]; then
       echo "I: this is not an SSH session, but --pretend-ssh was given..."
     else
-- 
2.39.2