wxGUI/iclass: get sorted list of maps from subgroup

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@58467 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/iclass/frame.py

@@ -1102,7 +1102,8 @@ class IClassMapFrame(DoubleMapFrame):
                          group = group,
                          read = True, **kwargs).strip()
         if res.split('\n')[0]:
-            return res.split('\n')
+            return sorted(res.split('\n'))
+        
         return []
     
     def ConvertToNull(self, name):