changed local_threshold value in client_spec to show it is in seconds
changed local_threshold value in client_spec to show it is in seconds

estolfo/mongo-ruby-driver,jonhyman/mongo-ruby-driver,mongodb/mongo-ruby-driver,mongodb/mongo-ruby-driver,estolfo/mongo-ruby-driver,mongodb/mongo-ruby-driver,saghm/mongo-ruby-driver,kay-kim/mongo-ruby-driver,jonhyman/mongo-ruby-driver,saghm/mongo-ruby-driver,kay-kim/mongo-ruby-driver