[PATCH perlfaq6] map in a void context.

--- pod/perlfaq6.pod.orig       Tue Sep  9 10:23:50 2003
+++ pod/perlfaq6.pod    Tue Sep  9 10:27:44 2003
@@ -679,15 +679,18 @@
 hope to know on these matters (a full citation appears in
 L<perlfaq2>).

-=head2 What's wrong with using grep or map in a void context?
+=head2 What's wrong with using grep in a void context?

-The problem is that both grep and map build a return list,
-regardless of the context.  This means you're making Perl go
-to the trouble of building a list that you then just throw away.
-If the list is large, you waste both time and space.  If your
-intent is to iterate over the list then use a for loop for this
+The problem is that grep builds a return list, regardless of the context.
+This means you're making Perl go to the trouble of building a list that
+you then just throw away. If the list is large, you waste both time and space.
+If your intent is to iterate over the list then use a for loop for this
 purpose.

+In perls older than 5.8.1, map suffers from this problem as well.
+But since 5.8.1, this has been fixed, and map is context aware - in void
+context, no lists are constructed.
+
 =head2 How can I match strings with multibyte characters?

 Starting from Perl 5.6 Perl has had some level of multibyte character