inline/minmaxstr.pm: add Salve's fix for RT#133128
inline/minmaxstr.pm: add Salve's fix for RT#133128

Apply the fix suggested by Salve J. Nilsen (SJN) to fix weird bug with some
locales reported in RT#133128. Thank you very much, @sjn.

Signed-off-by: Jens Rehsack <69d49c504a9219a55b8be0f905e8fe3c32ffb57f@netbsd.org>

perl5-utils/List-MoreUtils-XS,perl5-utils/List-MoreUtils-XS