refactored a test fixture, since Chalk removed the chalk.stripColor() method

Author: JamesMessinger

package.json

@@ -48,7 +48,8 @@
     "eslint": "^4.11.0",
     "eslint-config-modular": "^4.1.0",
     "mocha": "^4.0.1",
-    "npm-check": "^5.5.2"
+    "npm-check": "^5.5.2",
+    "strip-ansi": "^4.0.0"
   },
   "dependencies": {
     "chalk": "^2.3.0",

test/fixtures/check.js

@@ -1,8 +1,8 @@
 'use strict';
 
-const chalk = require('chalk');
+const stripAnsi = require('strip-ansi');
 const logSymbols = require('log-symbols');
 
 // Export the check symbol (✔ on Mac/Linux, √ on Windows)
 // with the ANSI color sequences removed
-module.exports = chalk.stripColor(logSymbols.success);
+module.exports = stripAnsi(logSymbols.success);