minor change to test output format.

build/startup-test.html

@@ -29,7 +29,7 @@ function phoneHome() {
     var startupTime = now - begin;
 	document.write('\n\nStartup time = ' + startupTime + ' ms<br>');
     if (window.dump) {
-	  dump('\n\n__startuptime: ' + startupTime + ' ms\n\n');
+	  dump('\n\n__startuptime,' + startupTime + '\n\n');
 	}
 }