test: Update go to 1.8.4
- name: fetch Golang
unarchive:
remote_src: yes
- src: https://storage.googleapis.com/golang/go1.8.3.linux-amd64.tar.gz
+ src: https://storage.googleapis.com/golang/go1.8.4.linux-amd64.tar.gz
dest: /usr/local
- name: link go toolchain
