rename grizzly_win_mag -> lar_grizzly_win_mag

BUR #23500 has been rejected.

rename grizzly_win_mag -> lar_grizzly_win_mag

So far all or almost all Grizzly Win Mags are made by L.A.R. Manufacturing Inc.

That implies that there are some that aren't.

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 #23500 (forum #269503) has been rejected by @DanbooruBot.