p4raw-id: //depot/perl@31281
vertical and horizontal whitespace, respectively. C<\V> and C<\H>
logically match their complements.
-C<\R> matches a generic linebreak, that is, horizontal whitespace, plus
+C<\R> matches a generic linebreak, that is, vertical whitespace, plus
the multi-character sequence C<"\x0D\x0A">.
=back