Index: /applications/editors/josm/i18n/i18n.pl
===================================================================
--- /applications/editors/josm/i18n/i18n.pl	(revision 28422)
+++ /applications/editors/josm/i18n/i18n.pl	(revision 28423)
@@ -357,4 +357,5 @@
   my @po;
   my $basename = shift @ARGV;
+  $basename .= "/" if !($basename =~ /[\/\\:]$/);
   foreach my $arg (@ARGV)
   {