uitest: improve the message of the ui test runner

Change-Id: I5026590506b4ddf3db95fb14fe6b0890255a5a25
diff --git a/uitest/test_main.py b/uitest/test_main.py
index 15e5d70..72c18ba 100644
--- a/uitest/test_main.py
+++ b/uitest/test_main.py
@@ -95,6 +95,12 @@ if __name__ == '__main__':
        sys.exit()
    test_suite = get_test_suite(opts)

    unittest.TextTestRunner().run(test_suite)
    result = unittest.TextTestRunner(verbosity=2).run(test_suite)
    print("Tests run: %d" % result.testsRun)
    print("Tests failed: %d" % len(result.failures))
    print("Tests errors: %d" % len(result.errors))
    if not result.wasSuccessful():
        sys.exit(1)
    sys.exit(0)

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