=head2 Filehandles can be autovivified
-The construct C<open(my $fh, ...)> can be used to create filehandles
-more easily. The filehandle will be automatically closed at the end
-of the scope of $fh, provided there are no other references to it. This
-largely eliminates the need for typeglobs when opening filehandles
-that must be passed around, as in the following example:
+Similar to how constructs such as C<$x->[0]> autovivify a reference,
+open() now autovivifies a filehandle if the first argument is an
+uninitialized variable. This allows the constructs C<open(my $fh, ...)> and
+C<open(local $fh,...)> to be used to create filehandles that will
+conveniently be closed automatically when the scope ends, provided there
+are no other references to them. This largely eliminates the need for
+typeglobs when opening filehandles that must be passed around, as in the
+following example:
sub myopen {
open my $fh, "@_"