Typo fix in libregex.
This patch fixes a copy-paste typo preventing $ from
working properly.
@@ -134,7 +134,7 @@ const gen = {re, t
/* meta */
|`Bol: append(re, `Ibol, t)
- |`Eol: append(re, `Ibol, t)
+ |`Eol: append(re, `Ieol, t)
|`Bow: append(re, `Ibow, t)
|`Eow: append(re, `Ieow, t)
|`Cap (m, a):
