From 6d3401f08b344e8c22f2745815e67785b0809885 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Sun, 13 Nov 2016 11:47:52 -0800
Subject: [PATCH] script: better script parse error formatting.

---
 lib/script/script.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/script/script.js b/lib/script/script.js
index feef16eb..f91e1b41 100644
--- a/lib/script/script.js
+++ b/lib/script/script.js
@@ -2989,6 +2989,11 @@ Script.format = function format(code) {
       continue;
     }
 
+    if (value === -1) {
+      out.push('OP_INVALIDOPCODE');
+      break;
+    }
+
     value = value.toString(16);
 
     if (value.length < 2)