Merge pull request dotnet/core-setup#3292 from dotnet-maestro-bot/master-UpdateDepend...
authorEric Erhardt <eric.erhardt@microsoft.com>
Mon, 9 Oct 2017 21:47:57 +0000 (16:47 -0500)
committerGitHub <noreply@github.com>
Mon, 9 Oct 2017 21:47:57 +0000 (16:47 -0500)
Update BuildTools to prerelease-02109-01 (master)

Commit migrated from https://github.com/dotnet/core-setup/commit/0b5d82039911e5b486d88c4d19a9787133651fdf


Trivial merge