Re: [Outreachy][PATCH v2] builtin/update-server-info: remove the_repository global variable

> Remove the_repository global variable in favor of the repository
> argument that gets passed in "builtin/update-server-info.c".
> 
> When `-h` is passed to the command outside a Git repository, the
> `run_builtin()` will call the `cmd_update_server_info()` function
> with `repo` set to NULL and then early in the function, "parse_options()"
> call will give the options help and exit, without having to consult much
> of the configuration file. So it is safe to omit reading the config when
> `repo` argument the caller gave us is NULL.