message: Fix ParaView ASCII output (was going to mfem::out instead of file stream)
diff: @@ -1078,7 +1078,7 @@ void ParaViewDataCollection::SaveGFieldVTU(std::ostream &os, int ref_,
  it->second->GetValues(i, RefG->RefPts, val, pmat);
  for (int j = 0; j < val.Size(); j++)
  {
  - WriteBinaryOrASCII(out, buf, val(j), "\n", pv_data_format);
  + WriteBinaryOrASCII(os, buf, val(j), "\n", pv_data_format);
  }
  }
  }
  @@ -1094,7 +1094,7 @@ void ParaViewDataCollection::SaveGFieldVTU(std::ostream &os, int ref_,
  {
  for (int ii = 0; ii < vval.Height(); ii++)
  {
  - WriteBinaryOrASCII(out, buf, vval(ii,jj), " ", pv_data_format);
  + WriteBinaryOrASCII(os, buf, vval(ii,jj), " ", pv_data_format);
  }
  if (pv_data_format == VTKFormat::ASCII) { os << '\n'; }
  }
  