Update portgen(1) to use PERMIT_PACKAGE

[Kurt Mosiejczuk]

portgen(1) will still spit out the old-style PERMIT_PACKAGE_* lines.
This diff changes it to just use the newer PERMIT_PACKAGE and 
PERMIT_DISTFILE lines.

--Kurt

Index: Port.pm
===================================================================
RCS file: /cvs/ports/infrastructure/lib/OpenBSD/PortGen/Port.pm,v
retrieving revision 1.17
diff -u -p -r1.17 Port.pm
--- Port.pm     16 May 2019 15:55:47 -0000      1.17
+++ Port.pm     12 Jun 2019 17:44:54 -0000
@@ -176,11 +176,10 @@ sub set_license
        my ( $self, $license ) = @_;
 
        if ( is_good($license) ) {
-               $self->{PERMIT_PACKAGE_CDROM} = 'Yes';
+               $self->{PERMIT_PACKAGE} = 'Yes';
        } else {
-               $self->{PERMIT_PACKAGE_CDROM} = 'unknown license';
-               $self->{PERMIT_PACKAGE_FTP}   = 'unknown license';
-               $self->{PERMIT_DISTFILES_FTP} = 'unknown license';
+               $self->{PERMIT_PACKAGE}   = 'unknown license';
+               $self->{PERMIT_DISTFILES} = 'unknown license';
        }
 
        $self->{license} = pretty_license($license);
@@ -396,7 +395,7 @@ sub write_makefile
                        my $print_key = "$key$equal";
                        $print_key .= $tabs if length $value;
 
-                       if ( $key eq 'PERMIT_PACKAGE_CDROM' && $license ) {
+                       if ( $key eq 'PERMIT_PACKAGE' && $license ) {
                                # guess that the comment before this was
                                # the license marker.
                                pop @makefile if $makefile[-1] =~ /^#/;