fix: syncer issue with fewer than requested results
fix: syncer issue with fewer than requested results

gsalgado/pyethapp,ethereum/pyethapp,d-das/pyethapp,danielnovy/test,gsalgado/pyethapp,changwu-tw/pyethapp,RomanZacharia/pyethapp,heikoheiko/pyethapp,changwu-tw/pyethapp,kustomzone/pyethapp,ethereum/pyethapp,vaporry/pyethapp,RomanZacharia/pyethapp