Fix option of stack benchmark, whitespace cleanup
Fix option of stack benchmark, whitespace cleanup

hkuplg/fcore,wxzh/fcore,wxzh/fcore,xnning/fcore,hkuplg/fcore,wxzh/fcore,xnning/fcore,xnning/fcore,zhiyuanshi/fcore,zhiyuanshi/fcore,zhiyuanshi/fcore,bixuanzju/fcore,bixuanzju/fcore,bixuanzju/fcore,hkuplg/fcore