Do not include directorys in zip name changes

Change-Id: I11b7c6c6f4d7ebdc0d07eb8440940c8771e941ab
diff --git a/script/korapxml2conllu b/script/korapxml2conllu
index 6c7e9b8..c5fc1fe 100755
--- a/script/korapxml2conllu
+++ b/script/korapxml2conllu
@@ -88,7 +88,7 @@
     close(CONLL);
     next;
   }
-  $data_zip =~ s/\.([^.]+)\.zip$/.zip/;
+  $data_zip =~ s/\.([^\/.]+)\.zip$/.zip/;
   my $foundry = $1;
   die "cannot open data file $data_zip corresponding to $morpho_zip" if(! -r $data_zip);