- bugfix: SIP directory name for --noppn

bin/slubsipbuilder.pl

@@ -286,7 +286,7 @@ sub main {
         mkpath("$output") || confess("could not create SIP directory for '$output', $!");
     }
     $output = abs_path($output);
-    my $sip_root_dir = "PPN-${ppn}_${file_date}";
+    my $sip_root_dir = (defined $ppn)? "PPN-${ppn}_${file_date}" : "ID-${noppn}_${file_date}";
     my $content = "$output/$sip_root_dir/data";
     if (!defined $as_zip) {
         mkpath("$output/$sip_root_dir") || confess("could not create SIP directory for '$output/$sip_root_dir', $!");