[19.03 backport] Bump golang 1.12.7 - #1998

[19.03 backport] Bump golang 1.12.7#1998

andrewhsu merged 2 commits into

docker:19.03docker/cli:19.03from

thaJeztah:19.03_backport_bump_golang_1.12.7thaJeztah/cli:19.03_backport_bump_golang_1.12.7Copy head branch name to clipboard