From 5eb481cd5b825220f6b8283a553cce936bd6d8c4 Mon Sep 17 00:00:00 2001
From: Dan Callahan <danc@element.io>
Date: Mon, 18 Oct 2021 17:00:05 +0100
Subject: [PATCH] Fix Shellcheck SC2115: Ensure never expands to /*

Use "${var:?}" to ensure this never expands to /* .

https://github.com/koalaman/shellcheck/wiki/SC2115

Signed-off-by: Dan Callahan <danc@element.io>
---
 demo/clean.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/demo/clean.sh b/demo/clean.sh
index 6b809f6e83..99482e87d3 100755
--- a/demo/clean.sh
+++ b/demo/clean.sh
@@ -12,8 +12,8 @@ if [ -f $PID_FILE ]; then
 fi
 
 for port in 8080 8081 8082; do
-    rm -rf $DIR/$port
+    rm -rf ${DIR:?}/$port
     rm -rf $DIR/media_store.$port
 done
 
-rm -rf $DIR/etc
+rm -rf ${DIR:?}/etc