The C<LC_CTYPE> locale also provides the map used in transliterating
characters between lower and uppercase. This affects the case-mapping
-functions--lc(), lcfirst, uc(), and ucfirst(); case-mapping
-interpolation with C<\l>, C<\L>, C<\u>, or C<\U> in double-quoted strings
-and C<s///> substitutions; and case-independent regular expression
+functions--fc(), lc(), lcfirst(), uc(), and ucfirst(); case-mapping
+interpolation with C<\F>, C<\l>, C<\L>, C<\u>, or C<\U> in double-quoted
+strings and C<s///> substitutions; and case-independent regular expression
pattern matching using the C<i> modifier.
Finally, C<LC_CTYPE> affects the POSIX character-class test