RE: [ELISP] Detect focus on emacs.

[Drew Adams]

    > Neat sig by the way.  What is "coin coin angle"?

    >        Michael Cadilhac, a.k.a. Micha [mika] |    _ coin
    _ coin
    >  _ angle
    >                        Epita/LRDE promo 2007 |  >(')____,  >(')____,
    > >(')____,
    >      2 rue de la Convention | 01.46.70.90.75 |    (` =~~/    (` =~~/
    >  (` =~~/
    >    94270 Le Kremlin Bicetre | 06.23.20.31.30 |
    > ~^~^`---'~^~^~^`---'~^~^~^`---'~^~^
    >

    The first two ducks speak French, no doubt. (Try to pronounce it
    through your nose, as in Monty Python's movies, like: queng, queng.)
    But the third one? I have no idea!

The third duck doesn't quite "get" how to talk canard. It says "angle",
because it thinks that ducks are supposed to say "corner" (angle) - "coin"
means "corner, in French.