svl: translate some comment in itemset.cxx
svl: translate some comment in itemset.cxx

Change-Id: I0d306854ed295826418ad88ea5c0c72b949eeb22

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