Merge topic 'windowed_sinc_pd_log_warning'

2d0c0ceb vtkWindowedSincPolyDataFilter log warning, not error, on no data

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Reviewed-by: Cory Quammen <cory.quammen@kitware.com>
Merge-request: !12003