Fixes #482 - UI displays "undefined" in results panel when comparing

Author: eamodio

CHANGELOG.md

@@ -7,6 +7,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 ## [Unreleased]
 ### Fixed
 - Fixes [#477](https://github.com/eamodio/vscode-gitlens/issues/477) - Can't load any GitLens features or UI
+- Fixes [#482](https://github.com/eamodio/vscode-gitlens/issues/482) - UI displays "undefined" in results panel when comparing
 
 ## [8.5.5] - 2018-08-18
 ### Added

src/system/string.ts

@@ -116,7 +116,7 @@ export namespace Strings {
         if (options === undefined) return `${count} ${s}${count === 1 ? '' : 's'}`;
 
         return `${count === 0 ? options.zero || count : options.number || count} ${
-            count === 1 ? s : options.plural || `${s}${options.suffix}`
+            count === 1 ? s : options.plural || `${s}${options.suffix || 's'}`
         }`;
     }