CppunitTest_sw_ooxmlexport: fix testcase that didn't fail without the fix
CppunitTest_sw_ooxmlexport: fix testcase that didn't fail without the fix

Change-Id: I87308b38bb44864db3531366ab354567847b1340

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