message: don't call basename on str
  This was a leftover from switching from path.basename to _basename(path).
  External issue:
diff: @@ -927,7 +927,7 @@ def _create_local_cuda_repository(repository_ctx):
  cuda_lib_outs = []
  for path in cuda_libs.values():
  cuda_lib_srcs.append(path)
  - cuda_lib_outs.append("cuda/lib/" + _basename(repository_ctx, path.basename))
  + cuda_lib_outs.append("cuda/lib/" + _basename(repository_ctx, path))
  copy_rules.append(make_copy_files_rule(
  repository_ctx,
  name = "cuda-lib",
  