[PATCH 6/6] cli: add top level --config=FILE option

[David Bremner]

Jani Nikula <jani at nikula.org> writes:

> Let the user specify the config file on the command line.
>  
> -    config = notmuch_config_open (local, NULL, command->create_config);
> +    config = notmuch_config_open (local, config_file_name, command->create_config);
>      if (!config)
>  	return 1;

LGTM