Fixed #13253 -- Updated the help message for dumpdata to indicate that individual models can be serialized. Thanks to arowla for the report.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12893 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/management/commands/dumpdata.py

@@ -21,7 +21,7 @@ class Command(BaseCommand):
             help='Use natural keys if they are available.'),
     )
     help = 'Output the contents of the database as a fixture of the given format.'
-    args = '[appname ...]'
+    args = '[appname appname.ModelName ...]'
 
     def handle(self, *app_labels, **options):
         from django.db.models import get_app, get_apps, get_models, get_model