"perldoc perldelta" still says 5.8.3 to 5.8.4, even though there
*is* a "perldoc perl583delta" properly.
This is because perl584delta still thinks it's the perldelta
p4raw-id: //depot/perl@23065
=head1 NAME
-perldelta - what is new for perl v5.8.4
+perl584delta - what is new for perl v5.8.4
=head1 DESCRIPTION