[BUG] send_file header strangeness

When I serve up a gif file using send_file('file.gif', :type =>
'image/gif'), for some reason I get 

  Content-Type: image/gif; charset=utf-8

in my headers. Maybe I'm missing something, but this doesn't look like
entirely correct behaviour.

-- 
Piers Cawley <pdcawley@xxxxxxxxxxx>
http://www.bofh.org.uk/

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