Merge pull request dotnet/coreclr#10092 from tannergooding/vs2017
authorTanner Gooding <tannergooding@users.noreply.github.com>
Mon, 13 Mar 2017 19:08:20 +0000 (12:08 -0700)
committerGitHub <noreply@github.com>
Mon, 13 Mar 2017 19:08:20 +0000 (12:08 -0700)
Updating tests/runtest.cmd to use delayed expansion for instances of `_msbuildexe`

Commit migrated from https://github.com/dotnet/coreclr/commit/98c0edfa07dc47e2ae4c7d785d3dd122f430bfc8


Trivial merge