Code review comment for lp:~unity-api-team/ubuntu-system-settings/apneditor

Testing on krillin, I can't get a working context for my t-mobile US SIM. Looking at the output of list-contexts, it isn't setting the value I entered for MessageCenter.

Looking at the upstart logs, I see this output when trying to set the context:
2014-08-29 15:39:19,973 - CRITICAL - Context error on /ril_0/context3: Invalid arguments in method call