localedata: bs_BA: fix yesexpr/noexpr [BZ #20974]

Both regexes end with a "*." which means the previous match can be
omitted, and then the . allows them to match any input at all.

This means tools like coreutils' `rm -i` will always delete things
when prompted because the yesexpr regex matches all inputs (even
the negative ones).

(cherry picked from commit a035eb69)
(cherry picked from commit 7e4405c5)