DBus Match Warning: match rule without selecting signals

If get-all-match.py ( see attached ) is run on the system bus of the latest rc-proposed touch image, the following warning is output for location-service:

- Match rule without selecting signals:
   - path='/com/ubuntu/espoo/Service/Provider',sender='com.ubuntu.espoo.Service.Provider'

In order to run the get-all-match.py script, you first need to install DBus from wily or from my PPA ( see below ). The script needs to be run with root permission, and the argument "--system" must be specified to attach to the system bus.

$ sudo ./get-all-match.py --system

I'm reporting this after running the tool on mako, rc-proposed, #307.

The link to my PPA is:

https://launchpad.net/~awe/+archive/ubuntu/ppa/+packages