'(Un)comment' is splitted into 'Comment' and 'Uncomment'

src/musrgui/PTextEdit.h

@@ -91,6 +91,7 @@ private slots:
   void editFindPrevious();
   void editFindAndReplace();
   void editComment();
+  void editUncomment();
 
   void textFamily( const QString &f );
   void textSize( const QString &p );