GoogleCloudPlatform/kubernetes — pull request #3088 by sergeyevstifeev (2014-12-22 14:00:06+00:00)
Title: Remove unnecessary 'sudo'

It seems to me that calling 'sudo' is not necessary at this point. In fact, if kubernetes hasn't been built yet, this will result in _output/ folder being owned by root thus making it not possible to use access kubernetes binaries without sudo.