Fixed #5330 -- Added a fixture file that was missing from [6039].

git-svn-id: http://code.djangoproject.com/svn/django/trunk@6042 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/test_client_regress/fixtures/testdata.json

+[
+    {
+        "pk": "1", 
+        "model": "auth.user", 
+        "fields": {
+            "username": "testclient", 
+            "first_name": "Test", 
+            "last_name": "Client", 
+            "is_active": true, 
+            "is_superuser": false, 
+            "is_staff": false, 
+            "last_login": "2006-12-17 07:03:31", 
+            "groups": [], 
+            "user_permissions": [], 
+            "password": "sha1$6efc0$f93efe9fd7542f25a7be94871ea45aa95de57161", 
+            "email": "testclient@example.com", 
+            "date_joined": "2006-12-17 07:03:31"
+        }
+    }
+]
\ No newline at end of file