Fix click on root button in path bar

Author: j4321

tkfilebrowser/filebrowser.py

@@ -994,7 +994,7 @@ def _update_path_bar(self, path):
         else:
             p = "/"
             b = PathButton(self.path_bar, self.path_var, p, image=self.im_drive,
-                           command=lambda path=p: self.display_folder(p, update_bar=False))
+                           command=lambda path=p: self.display_folder(path, update_bar=False))
         self.path_bar_buttons.append(b)
         b.grid(row=0, column=1, sticky="ns")
         for i, folder in enumerate(folders):