coverity#703957 Unchecked return value
coverity#703957 Unchecked return value

Change-Id: If9e3e7297b1539c93902895c50af3fb8f6c83a76

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