message: fix regression in clang plugin after my refactor
diff: @@ -152,6 +152,7 @@ struct TVLegacyPass final : public llvm::ModulePass {
  if (!opt_quiet)
  t.print(*out, print_opts);
  *out << "Transformation seems to be correct! (syntactically equal)\n\n";
  + I->second.fn = move(t.tgt);
  return false;
  }
  