When C<use locale> is in effect, the current LC_CTYPE locale is used
for regular expressions and case mapping; LC_COLLATE for string
-ordering; and LC_NUMERIC for numeric formating in printf and sprintf
+ordering; and LC_NUMERIC for numeric formatting in printf and sprintf
(but B<not> in print). LC_NUMERIC is always used in write, since
lexical scoping of formats is problematic at best.