Add bazel query reminder for seeing defines
Add bazel query reminder for seeing defines

This was really handy to compare G3 builds to external builds,
so I want it available for easier re-reference.

Change-Id: I4f38fe3076d5782fb50faacdea065235d0a7cec9
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/582343
Reviewed-by: Chris Mumford <86e3bd41c0fc7139fc638a34b6b342d4b7b77b85@google.com>
Auto-Submit: Kevin Lubick <7cdab2cfab351f23814786ba39716e90eed69047@google.com>
Commit-Queue: Chris Mumford <86e3bd41c0fc7139fc638a34b6b342d4b7b77b85@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot