gunittest: fix import in example on manual page

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@62290 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/python/docs/src/gunittest_testing.rst

@@ -383,7 +383,7 @@ test things such as creation and removal of maps in error states).
 
 ::
 
-    from grass.gunittest import SimpleModule
+    from grass.gunittest.gmodules import SimpleModule
 
     class TestRInfoParameterHandling(TestCase):
         """Test r.info handling of wrong input of parameters."""