Fixed to work with latest Dehydrated

Created by: shusain93

Newer version of Dehydrated toss in an intentionally bad hook this_hookscript_is_broken__dehydrated_is_working_fine__please_ignore_unknown_hooks_in_your_script to ensure that scripts are halding unknown hooks properly, aka ignoring them.

It detects if it's handling it properly by testing if it outputs anything which means we need to exit normally without error on unkown hooks