convert lcl_GetToken from xub_StrLen to sal_Int32
convert lcl_GetToken from xub_StrLen to sal_Int32

Change-Id: I72e98f1059280ed05b6cf77a6d69e522b4b8c075

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