Fixed tests following CLI UI improvements

Author: pombredanne

tests/scancode/test_cli.py

@@ -68,7 +68,6 @@ def test_extract_option_does_extract(self):
         assert result.exit_code == 0
         assert 'Extracting done' in result.output
         assert 'ERROR: Unrecognized archive format' in result.output
-        assert 'Extraction errors or warnings' in result.output
         assert os.path.exists(os.path.join(test_dir, 'some.tar.gz-extract'))
 
     def test_extract_option_works_with_relative_paths(self):