Merge topic 'xml-string-test-warnings'

46f1b60a Testing: fix unused variable warnings
Acked-by: Kitware Robot <kwrobot@kitware.com>
Reviewed-by: Dan Lipsa <dan.lipsa@kitware.com>
Merge-request: !417

IO/XML/Testing/Cxx/TestXMLToString.cxx

@@ -3,7 +3,7 @@
 #include "vtkTestUtilities.h"
 #include "vtkXMLPolyDataWriter.h"
 
-int TestXMLToString(int argc, char*argv[])
+int TestXMLToString(int /*argc*/, char* /*argv*/[])
 {
   vtkNew<vtkSphereSource> sphere;
   vtkNew<vtkXMLPolyDataWriter> writer;