writerfilter: fix include guard
writerfilter: fix include guard

Change-Id: I8c5c8a4e8fbb6e6a2e955c4f544786a2256e6342

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core