From 1e91e414cc51d06ac4028ec70a8d8b89467e4ca4 Mon Sep 17 00:00:00 2001
From: Tyler Akins <fidian@rumkin.com>
Date: Mon, 13 Nov 2017 10:31:51 -0600
Subject: [PATCH] Fix for when running in strict mode

---
 mo | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mo b/mo
index 2d0f59e..8bc1177 100755
--- a/mo
+++ b/mo
@@ -835,13 +835,13 @@ moShow() {
 
     moSplit moNameParts "$1" "."
 
-    if [[ -z "${moNameParts[1]}" ]]; then
+    if [[ -z "${moNameParts[1]-}" ]]; then
         if moIsArray "$1"; then
             eval moJoin moJoined "," "\${$1[@]}"
             echo -n "$moJoined"
         else
             # shellcheck disable=SC2031
-            if [[ -z "$MO_FAIL_ON_UNSET" ]] || moTestVarSet "$1"; then
+            if [[ -z "${MO_FAIL_ON_UNSET-}" ]] || moTestVarSet "$1"; then
                 echo -n "${!1}"
             else
                 echo "Env variable not set: $1" >&2