[PATCH] speakup: Fix bogus caps on speaking unicode characters

[Chris Brannon]

Samuel Thibault <samuel.thibault at ens-lyon.org> writes:

> commit 33590c185299 ("speakup: Support spelling unicode characters")
> mistakenly passed unicode characters to IS_CHAR(), which only
> supports latin1.  Let's assume non-latin1 is lower case, like is done
> in spell_word().

Reviewed-by: Chris Brannon <chris at the-brannons.com>