portgen still adds RCS tag

[Kirill Bychkov]

Hi!
Just tried portgen for generating p5 port and found out that it
still places $OpenBSD$ at the top of Makefile.
The patch below fixes that. Not sure it is 100% correct.

Index: Port.pm
===================================================================
RCS file: /cvs/ports/infrastructure/lib/OpenBSD/PortGen/Port.pm,v
retrieving revision 1.24
diff -u -p -u -r1.24 Port.pm
--- Port.pm     5 Jan 2022 21:23:18 -0000       1.24
+++ Port.pm     17 Jun 2022 13:41:24 -0000
@@ -355,12 +355,10 @@ sub write_makefile
                    grep { $_->{name} ne 'EXTRACT_SUFX' }
                    grep { ref } @template;
        } else {
-               my $tag = 'OpenBSD';
                my $template =
                    ports_dir() . '/infrastructure/templates/Makefile.template';

                @template = (
-                   "# \$$tag\$",
                    grep { $_ !~ /^\#/x } $self->parse_makefile($template)
                );
        }