use correct funcs and methods

doc/Type/IO/Handle.pod6

@@ -125,20 +125,20 @@ to a file.  See L<sub sprintf|https://docs.perl6.org/type/Str#sub_sprintf> for d
 the Perl 6 C<$format> implementation
 
 Note that currently C<printf> is not a method for C<IO::Handle>, but
-its effect may be duplicated with a work-around using C<sub sprintf>.
-For example:
+its effect may be duplicated with a work-around using C<sub sprintf>
+and methods C<print> or C<say>.  For example:
 
 =for code :skip-test
 my $fh = open 'path/to/file', :w;
-$fh.say(printf("%d\n", 32));
+$fh.print(sprintf("%d\n", 32));
 $fh.close;
 
 The C<say> method (see below) may be used for an automatic ending
 newline:
 
 =for code :skip-test
 my $fh = open 'path/to/file', :w;
-$fh.say(printf("%d\n", 32));
+$fh.say(sprintf("%d", 32));
 $fh.close;
 
 See L<sub sprintf|https://docs.perl6.org/type/Str#sub_sprintf>