VTU: put xml closing element on separate line

We try to output VTU XML data in somewhat pretty way like
  <Points>
    <DataArray type="Float32" NumberOfComponents="3" format="binary">
[BASE64 data]
    </DataArray>
  </Points>
but we were missing a newline after writing scalar base64 data. Fix
this.

diff --git a/source/base/data_out_base.cc b/source/base/data_out_base.cc
index 92490893f751b3861d57bfdc8bb39372066f3b39..05622a848fc1cd93cfc0ec908399326d2d39ff50 100644 (file)
--- a/source/base/data_out_base.cc
+++ b/source/base/data_out_base.cc
@@ -6189,6 +6189,7 @@ namespace DataOutBase
           } // loop over nodes
 
         vtu_out << data;
+        out << "\n";
         out << "    </DataArray>\n";
 
       } // loop over ranges
@@ -6211,6 +6212,7 @@ namespace DataOutBase
           std::vector<float> data(data_vectors[data_set].begin(),
                                   data_vectors[data_set].end());
           vtu_out << data;
+          out << "\n";
           out << "    </DataArray>\n";
         }