Merge pull request dotnet/coreclr#9868 from wtgodbe/HelixPrep
authorWilliam Godbe <wigodbe@microsoft.com>
Wed, 1 Mar 2017 20:45:28 +0000 (12:45 -0800)
committerGitHub <noreply@github.com>
Wed, 1 Mar 2017 20:45:28 +0000 (12:45 -0800)
Allow user to zip tests even when not building against packages

Commit migrated from https://github.com/dotnet/coreclr/commit/dc3626d4e6934fb02db038b527e665e310e33cd7


Trivial merge