Code review comment for lp:~unity-api-team/indicator-network/modeminfo

Seems to be a little better now, but after a few tries of rebooting phone and unlocking I got this:

This is after unlocking. Note missing text & disabled signal icon in panel.
https://dl.dropboxusercontent.com/u/85539674/locked_sim/locked_sim8.png

After restarting indicator-network.
https://dl.dropboxusercontent.com/u/85539674/locked_sim/locked_sim9.png

The state text should never be empty. If it's in an unknown state, it should say "Unknown".