- *$gsu_config_file*. The name of the config file of the application.
Defaults to `~/.${gsu_name}.rc'.
- - *$gsu_options*.
+ - *$gsu_options*. Array of config options, used by the config module.
- *$gsu_config_var_prefix*. Used by the config module to set up
the variables defined in $gsu_options.