Merge topic 'xml_writer_speed_fix'

8a095a0d Improve performance of XML writers.
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Scott Wittenburg <scott.wittenburg@kitware.com>
Acked-by: David E. DeMarle <dave.demarle@kitware.com>
Merge-request: !4753

Common/DataModel/vtkXMLDataElement.cxx

@@ -397,7 +397,7 @@ void vtkXMLDataElement::PrintCharacterData(ostream &os, vtkIndent indent)
 // <, >, &, ", ', respectively.
 void vtkXMLDataElement::PrintWithEscapedData(ostream& os, const char* data)
 {
-  for(size_t i=0;i<strlen(data);i++)
+  for(size_t i=0; data[i] != 0; i++)
   {
     switch(data[i])
     {