Code review comment for ~fourdollars/pc-enablement/+git/oem-scripts:master

I'm thinking of the possibility of a unit test for pkg-list to capture all scenario of this script like what I did in pc-sanity package [1].

So, that we have confidence that any change would not impact expected behavior and the new scenarios could also be reviewed and verified easily through unit tests.

[1] https://git.launchpad.net/plainbox-provider-pc-sanity/tree/test