remove duplicates, in case we're scanning the same package several times.

okay pvalchev@

infrastructure/package/find-all-conflicts

@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 
-# $OpenBSD: find-all-conflicts,v 1.8 2004/11/11 15:38:02 espie Exp $
+# $OpenBSD: find-all-conflicts,v 1.9 2005/08/14 11:57:17 espie Exp $
 # Copyright (c) 2000
 # Marc Espie.  All rights reserved.
 # Redistribution and use in source and binary forms, with or without
@@ -56,6 +56,8 @@ sub show_problems
     my ($h, $conflicts) = @_;
 
     while (my ($key, $l) = each %$h) {
+	    my %s = map {($_, 1)} @$l;
+	    @$l = keys %s;
 	    if (@$l > 1) {
 		my $notfound = 0;
 		# create a list of unconflicting packages.