Add explanatory comment to empty BUILD file(s)

Change-Id: Ifc4e5146672ffa35ba45882cafaae82bf9ea5751
1 file changed
tree: 273b06aa5a675be6966ec64fb6f363f713701099
  1. src/
  2. tools/
  3. .bazelrc
  4. .gitignore
  5. bazlets.bzl
  6. BUILD
  7. LICENSE
  8. WORKSPACE