When I tried to run `rhc connect` as a non-root user, I got the following error:

```
$ rhc connect -a <key> -o <org>
Connecting localhost.localdomain to Red Hat.
This might take a few seconds.

write unix @->@/run/dbus-rsEbaYVP5H: write: broken pipe
```

I think `rhc` should be able to detect when it is not being run as root and provide more informative erorot message.

This was observed on a RHEL for Edge install with `rhc-0.2.1-5.el9.x86_64`