CID#1078787: fix memory leak
CID#1078787: fix memory leak

Change-Id: Ia54965d35ffe29e32b85cd720ecd41495ff72063

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