GitLab

After https://chromium-review.googlesource.com/1075947, quoting is
never needed with the hermetic msvc toolchain, so let's make the
build command a tiny bit nicer in that scenario.

Bug: 640000,439949
Change-Id: I22e3470057b43fb6a5df3f675bc95a7d84dce9c9
Reviewed-on: https://chromium-review.googlesource.com/1101557
Commit-Queue: Nico Weber <thakis@chromium.org>
Reviewed-by: Scott Graham <scottmg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#567401}