accounts.find: improved docstring, small fix
accounts.find: improved docstring, small fix

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