change the description of the drive command

packages/flutter_tools/lib/src/commands/create.dart

@@ -34,7 +34,7 @@ class CreateCommand extends Command {
       'with-driver-test',
       negatable: true,
       defaultsTo: false,
-      help: 'Also add Flutter Driver dependencies and generate a sample driver test.'
+      help: 'Also add a flutter_driver dependency and generate a sample \'flutter drive\' test.'
     );
   }
 

packages/flutter_tools/templates/driver/main_test.dart.tmpl

@@ -7,8 +7,8 @@
 // To start the test run the following command from the root of your application
 // package:
 //
-//     flutter drive --target=test_driver/e2e.dart
-//
+//     flutter drive --target=test_driver/main_test.dart
+
 import 'package:flutter_driver/flutter_driver.dart';
 import 'package:test/test.dart';