message: Add back whitespace
diff: @@ -152,7 +152,7 @@ def tf_library(name, graph, config,
  " --target_triple=" + target_llvm_triple() +
  " --out_header=$(@D)/" + header_file +
  " --out_object=$(@D)/" + object_file +
  - flags),
  + " " + flags),
  tools=[tfcompile_tool],
  visibility=visibility,
  testonly=testonly,
  