user: using same err variable on isValid
user: using same err variable on isValid

gleez/gandalf,marcelometal/gandalf,marcelometal/gandalf,tsuru/gandalf,flaviamissi/gandalf,scorphus/gandalf,marcelometal/gandalf,flaviamissi/gandalf,tsuru/gandalf,gleez/gandalf,gleez/gandalf,scorphus/gandalf