Clean benign errors

[codisart]

No description provided.

[Xerkus]

That method can be used/overriden by extending code so changing its signature will be a BC break.

It would be better to default $hostname to true and simplify following check to:

if ($local && $hostname && $length) {
    return true;
}

[codisart]

Thank you @Xerkus for your review. I did changes to my code.

[weierophinney]

Thanks, @codisart