changed variable to match rest of file

restic.sh

@@ -10,7 +10,7 @@ LATEST_RESTIC_VERSION="0.12.1"
 export RESTIC_REPOSITORY="sftp://root@gauntnas.home.johnhgaunt.com:50022//mnt/restic"
 export RESTIC_PASSWORD="restic"
 
-case $1 in
+case ${1} in
 
   "GauntBitwarden")
     BACKUP_DIRS="/etc /opt/bitwarden /var/spool/cron"
@@ -22,7 +22,7 @@ case $1 in
     ;;
 
   *)
-    echo "Error: Hostname, $1, didn't match any known matches."
+    echo "Error: Hostname, ${1}, didn't match any known matches."
     exit 1
     ;;
 esac