Finding items not in 2 lists/dictionaries

[Steven Taschuk]

Quoth Robin Siebler:
> I have no clue what the '&c' means or does.  [...]

It's another way to write "etc.".  It's not part of the code.

(In fact the ampersand originated from typographically fancy ways
of writing "et", Latin for "and".)

-- 
Steven Taschuk                            staschuk at telusplanet.net
"Our analysis begins with two outrageous benchmarks."
  -- Clinger et al., "Implementation strategies for continuations"