Merge pull request dotnet/core-setup#3277 from janvorli/update-centos-docker-image
authorJan Vorlicek <janvorli@microsoft.com>
Fri, 6 Oct 2017 18:34:54 +0000 (20:34 +0200)
committerGitHub <noreply@github.com>
Fri, 6 Oct 2017 18:34:54 +0000 (20:34 +0200)
Update CentOS 6 docker image

Commit migrated from https://github.com/dotnet/core-setup/commit/7944bda996540ee9fbef924ea6694a872b458c77


Trivial merge