Trick autoreloader to think we are django-admin in aleksis-admin

Follow-up on 2f7ccc1d

aleksis/core/__main__.py

@@ -3,13 +3,14 @@
 import os
 import sys
 
+import django.__main__
 from django.core.management import execute_from_command_line
 
 
 def aleksis_cmd():
     """Run django-admin command with correct settings path."""
     os.environ.setdefault("DJANGO_SETTINGS_MODULE", "aleksis.core.settings")
-    sys.argv[0] = os.path.dirname(__file__)
+    sys.argv[0] = django.__main__.__file__
     execute_from_command_line(sys.argv)