wxGUI/iclass: fix OnHelp()

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@54397 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/iclass/frame.py

@@ -192,7 +192,7 @@ class IClassMapFrame(DoubleMapFrame):
             
     def OnHelp(self, event):
         """!Show help page"""
-        self._giface.Help(entry = 'wxGUI.IClass')
+        self._giface.Help(entry = 'wxGUI.iclass')
         
     def CreateTempVector(self):
         """!Create temporary vector map for training areas"""