test: replace var with const in test-require-dot

PR-URL: #9916
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Italo A. Casas <me@italoacasas.com>

Author: amarzavery

test/parallel/test-require-dot.js

@@ -1,17 +1,17 @@
 'use strict';
-varcommon=require('../common');
-varassert=require('assert');
-varmodule=require('module');
+constcommon=require('../common');
+constassert=require('assert');
+constm=require('module');
 
-vara=require(common.fixturesDir+'/module-require/relative/dot.js');
-varb=require(common.fixturesDir+'/module-require/relative/dot-slash.js');
+consta=require(common.fixturesDir+'/module-require/relative/dot.js');
+constb=require(common.fixturesDir+'/module-require/relative/dot-slash.js');
 
-assert.equal(a.value,42);
-assert.equal(a,b,'require(".") should resolve like require("./")');
+assert.strictEqual(a.value,42);
+assert.strictEqual(a,b,'require(".") should resolve like require("./")');
 
 process.env.NODE_PATH=common.fixturesDir+'/module-require/relative';
-module._initPaths();
+m._initPaths();
 
-varc=require('.');
+constc=require('.');
 
-assert.equal(c.value,42,'require(".") should honor NODE_PATH');
+assert.strictEqual(c.value,42,'require(".") should honor NODE_PATH');