coverity#735323 Unchecked return value
coverity#735323 Unchecked return value

Change-Id: I907b2fb0024b104cc008cbf4c75f30513c7eb57d

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