From a49d9163ef11d3f980825935f0d095fce8a9dafb Mon Sep 17 00:00:00 2001
From: Jordan Harband <ljharb@gmail.com>
Date: Wed, 21 Nov 2018 21:25:20 -0600
Subject: [PATCH] [Fix] avoid unbound variable

Fixes #1949.
---
 nvm.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nvm.sh b/nvm.sh
index 1b23698..8c94401 100644
--- a/nvm.sh
+++ b/nvm.sh
@@ -3419,7 +3419,7 @@ nvm() {
         esac
         shift
       done
-      case "${PATTERN}" in
+      case "${PATTERN-}" in
         'lts/*')
           NVM_LTS='*'
           unset PATTERN