When using the CMake build system with tools such as Ninja (instead of
Make), they have very concise output, and the general "UX flow" involves
only outputting warnings that should be fixed or errors that should stop
the build. Furthermore, when building things in CI systems and looking
at build logs, etc, it's often vastly easier to to hunt down errors when
only relevant stuff is output.
With this change, the output from coveragetool.exe is suppressed, which
accounts for a lot of spurious output that isn't necessary when running
these builds.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
a67d47844b