alias block -> block_(object)

BUR #16370 has been approved by @nonamethanks.

create alias block -> block_(object)

just so we don't have people thinking this is blocking

We also have cube with similar usage.

This bulk update request is pending automatic rejection in 5 days.

This bulk update request has been rejected because it was not approved within 45 days.

The bulk update request #16370 (forum #239313) has been rejected by @DanbooruBot.

The bulk update request #16370 (forum #239313) has been approved by @nonamethanks.