Re: [PATCH v6 0/2] MR3473: whoami: Refactor and add more commands.

[Hans Leidekker (＠hans)]

Hans Leidekker (@hans) commented about programs/whoami/main.c:
> -
>    ERR("Memory allocation failed\n");
> -
>    return FALSE;
> }
> - result = GetUserNameExW(NameSamCompatible, NULL, &size);
> - if (result || GetLastError() != ERROR_MORE_DATA)
> - result = GetUserNameExW(name_format, *name, &size);
> - if (!result)
> - {
> -
>    ERR("GetUserNameExW failed, error %ld\n", GetLastError());
> -
>    return FALSE;
> - }
> -
> - return TRUE;
>
> +}
> -

So get_user_name() could be simplified like this:
```
static WCHAR *get_user_name(EXTENDED_NAME_FORMAT name_format)
{       
    ULONG size;
    WCHAR *ret;

if (GetUserNameExW(name_format, NULL, &size) || GetLastError() != ERROR_MORE_DATA) return NULL;
    if (!(ret = malloc(size * sizeof(WCHAR)))) return NULL;
    if ((GetUserNameExW(name_format, ret, &size))) return ret;
    free(ret);
    return NULL;
}
```