localedef: correct definition of right-parenthesis in default charmap

It turns out that right parentheses do exist and are different than
left parentheses, so let's switch to that.

Approved by: re (kib)
Sponsored by: Klara, Inc.

(cherry picked from commit 07bc20e4740d09f554c3787bb1940fc503300822)
(cherry picked from commit 8d98eb4e51eb1777b6bdb3682dbd7472c9cc2c71)