From 3b66ebcb1b7933ff2178eaed323b5383a1ecec0d Mon Sep 17 00:00:00 2001
From: Kevin Gravier <kgravier@fusetg.com>
Date: Wed, 10 Jan 2018 14:29:58 -0500
Subject: [PATCH] Allow a user to pass either height or width to the thumbnail
 function

---
 lib/commands/thumbnail.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/commands/thumbnail.js b/lib/commands/thumbnail.js
index 8342900..8630f84 100644
--- a/lib/commands/thumbnail.js
+++ b/lib/commands/thumbnail.js
@@ -31,7 +31,7 @@ exports.thumbnail = function thumbnail(options) {
                 throw new Error(utils.errorMessages['path']);
             }
 
-            if (options.width === undefined) {
+            if (options.width === undefined && options.height === undefined) {
                 throw new Error(utils.errorMessages['dim']);
             }