restore old explanation message via assert hack
restore old explanation message via assert hack

Change-Id: I897f71e5ae4d2368d5d3ced60d90fb1c833fa376

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