sanitize_to_id in FormTagHelper#text_area_tag patch review request

hi. i'd be very grateful to anyone to spare a minute and review single-
line patch that adds missing sanitize_to_id to
FormTagHelper#text_area_tag.
check it out at
https://rails.lighthouseapp.com/projects/8994-ruby-on-rails/tickets/2496-missing-sanitize_to_id-in-formtaghelpertext_area_tag

Marked that ticket as a duplicate of #1703 (https://rails.lighthouseapp.com/projects/8994/tickets/1703
). Can somebody from core take a look at 1703? It seems like a
straightforward patch...

--Matt Jones