wxGUI/layertree: fix newly introduced method

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@54057 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/lmgr/layertree.py

@@ -254,7 +254,7 @@ class LayerTree(treemixin.DragAndDrop, CT.CustomTreeCtrl):
     def GetSelectedLayers(self, checkedOnly = False):
         """!Get selected layers as a list.
         """
-        return self.GetSelectedLayers(multi = True, checkedOnly = False)
+        return self.GetSelectedLayer(multi = True, checkedOnly = False)
 
     def GetSelectedLayer(self, multi = False, checkedOnly = False):
         """!Get selected layer from layer tree.