Fix UnicodeDecodeError in pailgun when unicode is present in environment.
Review Request #3915 - Created May 20, 2016 and submitted
|ity, peiyu, stuhood|
N.B. Due to an apparent lack of support for unicode environment values in
PantsRunIntegrationTest.run_pants_with_workdir(), this is presented without direct test coverage for the unicode-in-environment case (but otherwise has execution coverage). :\
Manually tested against the repro in #3473 - see note above about unicode environment testing limitations.
otherwise, CI is away @ https://travis-ci.org/pantsbuild/pants/builds/131819772