rename tomo_(aaron_ho_) -> tomo_(aaron_ho)

BUR #45822 has been approved by @nonamethanks.

rename tomo_(aaron_ho_) -> tomo_(aaron_ho)

Removing extra underscore at the end.

Edit: Actually, I just checked the tag list and there are a lot of artist and character tags with an extra underscore. Are those actually part of the artist name? Should we just leave them as they are?

Commissioner's username is Aaron_Ho_ on xitter. Display name is just "Aaron Ho".

As their display name is basically their real name, and how they want their name displayed, I think the trailing underscore should be dropped. They're only not using Aaron_Ho because it's taken.
There's also a Danbooru user named Aaron Ho (user #1294998), but it might not be the same person.

The bulk update request #45822 (forum #377220) has been approved by @nonamethanks.