From 91e2ce25479df7294ebf50e1683cb71282ba160a Mon Sep 17 00:00:00 2001
From: Gerhard Stoebich <18708370+Flarna@users.noreply.github.com>
Date: Sat, 11 Jan 2020 22:55:24 +0100
Subject: [PATCH] errors: remove dead code in ERR_INVALID_ARG_TYPE

Remove unreachable code. As expected is converted to an Array the
'not ' check will be never executed.
---
 lib/internal/errors.js | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/lib/internal/errors.js b/lib/internal/errors.js
index ed03b8d47a53a7..f69a4cd82e353c 100644
--- a/lib/internal/errors.js
+++ b/lib/internal/errors.js
@@ -946,14 +946,7 @@ E('ERR_INVALID_ARG_TYPE',
       const type = name.includes('.') ? 'property' : 'argument';
       msg += `"${name}" ${type} `;
     }
-
-    // determiner: 'must be' or 'must not be'
-    if (typeof expected === 'string' && expected.startsWith('not ')) {
-      msg += 'must not be ';
-      expected = expected.replace(/^not /, '');
-    } else {
-      msg += 'must be ';
-    }
+    msg += 'must be ';
 
     const types = [];
     const instances = [];