Update cached source before listing packages
Update cached source before listing packages

Prevents the following error when running ======CAROLYN WAS HERE 2=======
======CAROLYN WAS HERE=======
======CAROLYN WAS HERE 2=======
======CAROLYN WAS HERE=======
======CAROLYN WAS HERE 2=======
======CAROLYN WAS HERE=======
======CAROLYN WAS HERE 2=======
======CAROLYN WAS HERE=======
======CAROLYN WAS HERE 2=======
======CAROLYN WAS HERE=======
======CAROLYN WAS HERE 2=======
======CAROLYN WAS HERE=======
======CAROLYN WAS HERE 2=======
======CAROLYN WAS HERE======= and the cache is out of date:
Unable to update checked out version: fatal: reference is not a tree: 3084677...

golang/dep,golang/dep,ibrasho-forks/dep,golang/dep,ibrasho-forks/dep