sw: style cleanup in GetFieldIdsFromDoc
sw: style cleanup in GetFieldIdsFromDoc

Change-Id: Ib7141b47d5c2a27b75e47756adb4c644aace721a

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