Merge pull request dotnet/core-setup#3298 from janvorli/update-centos-6-docker-image
authorJan Vorlicek <janvorli@microsoft.com>
Sat, 14 Oct 2017 08:43:04 +0000 (10:43 +0200)
committerGitHub <noreply@github.com>
Sat, 14 Oct 2017 08:43:04 +0000 (10:43 +0200)
Update CentOS 6 docker image

Commit migrated from https://github.com/dotnet/core-setup/commit/5a4a0135e57035fd4d8fc4e7135c0c34ab4b721f


Trivial merge