p4raw-id: //depot/maint-5.005/perl@1732
In contrast, C<a*ab> will match the same as C<a+b>, since the match of
the subgroup C<a*> is influenced by the following group C<ab> (see
L<"Backtracking">). In particular, C<a*> inside C<a*ab> will match
-less characters that a standalone C<a*>, since this makes the tail match.
+fewer characters than a standalone C<a*>, since this makes the tail match.
An effect similar to C<(?E<gt>pattern)> may be achieved by