Build: Make Promises/A+ tests use the dot reporter instead of the def…

…ault

The default reporter is very verbose as it prints all the test names it
encounters. We already use the dot reporter for Karma tests.

Closes gh-4313

build/tasks/promises_aplus_tests.js

@@ -1,9 +1,8 @@
-module.exports = function( grunt ) {
+"use strict";
 
-	"use strict";
-
-	var timeout = 2000,
-		spawnTest = require( "./lib/spawn_test.js" );
+module.exports = grunt => {
+	const timeout = 2000;
+	const spawnTest = require( "./lib/spawn_test.js" );
 
 	grunt.registerTask( "promises_aplus_tests",
 		[ "promises_aplus_tests:deferred", "promises_aplus_tests:when" ] );
@@ -12,6 +11,7 @@ module.exports = function( grunt ) {
 		spawnTest( this.async(),
 			"\"" + __dirname + "/../../node_modules/.bin/promises-aplus-tests\"" +
 				" test/promises_aplus_adapters/deferred.js" +
+				" --reporter dot" +
 				" --timeout " + timeout
 		);
 	} );
@@ -20,6 +20,7 @@ module.exports = function( grunt ) {
 		spawnTest( this.async(),
 			"\"" + __dirname + "/../../node_modules/.bin/promises-aplus-tests\"" +
 				" test/promises_aplus_adapters/when.js" +
+				" --reporter dot" +
 				" --timeout " + timeout
 		);
 	} );