Update Dockerfile for nightly build 1.6rc2-nightly-41191e192cb3d499ca8a2552117029493c6be1a9
Update Dockerfile for nightly build 1.6rc2-nightly-41191e192cb3d499ca8a2552117029493c6be1a9
strarsis/docker-golang-nightly,strarsis/docker-golang-nightly