minor update of undo message for labeling one thread

diff --git a/lib/sup/modes/thread-index-mode.rb b/lib/sup/modes/thread-index-mode.rb
index 5714ad851d785b806a9fa93d292bd9c6ce8e7cd7..9b44ee35c7ee2d6091b6dc5b0a82aec98b8dfb21 100644 (file)
--- a/lib/sup/modes/thread-index-mode.rb
+++ b/lib/sup/modes/thread-index-mode.rb
@@ -537,7 +537,7 @@ EOS
     user_labels.each { |l| LabelManager << l }
     update_text_for_line curpos
 
-    UndoManager.register "labeling thread #{thread.first.id}" do
+    UndoManager.register "labeling thread" do
       thread.labels = old_labels
       update_text_for_line pos
       UpdateManager.relay self, :labeled, thread.first