message: Make inaccessible files message more prominent
diff: @@ -547,7 +547,8 @@ bool AliAnalysisTaskEmcalEmbeddingHelper::GetFilenames()
  // NOTE: We invert the result of IsFileAccessible because we should return true for files that should be _removed_ (ie are inaccessible)
  fFilenames.erase(std::remove_if(fFilenames.begin(), fFilenames.end(), [](const std::string & filename) {return (::IsFileAccessible(filename) == false);} ), fFilenames.end());
  - AliInfoStream() << "Found " << fFilenames.size() << " files to embed (" << (initialSize - fFilenames.size()) << " filename(s) inaccessible or invalid)\n";
  + // NOTE: This isn't necessarily a problem, but we want to clearly indicate what has happened for the user.
  + AliErrorStream() << "Found " << fFilenames.size() << " files to embed (" << (initialSize - fFilenames.size()) << " filename(s) inaccessible or invalid)\n";
  // Determine pythia filename
  DeterminePythiaXSecFilename();
  