[tex-hyphen] Possible error in hyphenation patterns for Ancient Greek.

[Arthur Reutenauer]

> Are you sure that that is the UNIcode code point of the numeral
> sign?

  Yes, this is U+0374 GREEK NUMERAL SIGN.  Depending on the font, it may
well be displayed with a curl like an apostrophe, but it clearly
shouldn't be treated as a letter.

	Arthur