hyperkitty_import command issues a possibly misleading message.

At the end of processing, the hyperkitty_import command issues the message:

The full-text search index is not updated for this list. It will not be updated by the 'minutely' incremental update job. To update the index for this list, run the 'manage.py update_index_one_list list@example.com' command.

For people unfamiliar with Django working in an installation where the Django admin command is not named manage.py, this can be confusing. I considered replacing manage.py with sys.argv[0] but in cases where the underlying command is invoked through a wrapper script, sys.argv[0] points to the underlying command and not to the wrapper script so that may not work. Maybe something like

The full-text search index is not updated for this list. It will not be updated by the 'minutely' incremental update job. To update the index for this list, run the Django admin command you just ran with arguments 'update_index_one_list list@example.com' instead of 'hyperkitty_import ...'.

would be better.