[chirp_devel] [PATCH] Fix clone.py to not attempt to read empty ports list.

Re: http://trac.chirp.danplanet.com/trac/ticket/128 IndexError bug

I said this bug was fixed in changeset:924, but it was actually just masked. If no ports are found, the IndexError still occurs.

I intended to fix this by displaying an error dialog when no ports were auto-detected, but decided to fail quietly instead. The user still has the option to manually type a port location. With this patch, CHIRP handles an empty serial port list without error. The fix prevents CHIRP from blindly attempting to read from an empty list.

Tom KD7LXL