From f477fc434865370e39932cb211a7a54919146879 Mon Sep 17 00:00:00 2001
From: Richard Goodwin <github@richardgoodwin.com>
Date: Tue, 16 Oct 2018 12:48:07 -0500
Subject: [PATCH] Even more error checking.

---
 windows_archive/setup-teslausb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/windows_archive/setup-teslausb b/windows_archive/setup-teslausb
index b5e27f8..e601c4a 100644
--- a/windows_archive/setup-teslausb
+++ b/windows_archive/setup-teslausb
@@ -25,7 +25,7 @@ check_variable "sharepassword"
 check_variable "campercent"
 
 function check_pushover_enabled () {
-  if [ -n "${pushover_enabled+x}" ]
+  if [ ! -z "${pushover_enabled+x}" ]
   then
     if [ ! -n "${pushover_user_key+x}" ] || [ ! -n "${pushover_app_key+x}"  ]
     then