Set deepEqual() prototype option to true by default, not just when no options are passed

[hueniverse]

This is clearly a bug in the way default options are set, but it does create a breaking change.

Not sure if I should revert it or not.

[kanongil]

Hmm, I'm not sure. Anyway, it doesn't seem to effect the usages in the hapi modules.

• Hoek.contain() always sets the prototype option in its deepEqual() invocation.
• In code it is always called with option and a value for prototype.
• In joi it is always called without options.

Note, there is still a case where the option is unset, where you might expect it to be the default value:

Hoek.deepEqual(Object.create(null), {}, { prototype: undefined });

[lock]

This thread has been automatically locked due to inactivity. Please open a new issue for related bugs or questions following the new issue template instructions.