fixed a bug related to the cache size options
fixed a bug related to the cache size options

fredwang00/primesieve,anatoliyrazin/primesieve,tempbottle/primesieve,anatoliyrazin/primesieve,tempbottle/primesieve,anatoliyrazin/primesieve,tempbottle/primesieve,kimwalisch/primesieve,ZahidDev/primesieve,kimwalisch/primesieve,fredwang00/primesieve,ZahidDev/primesieve,kimwalisch/primesieve,fredwang00/primesieve,ZahidDev/primesieve