def _normalize_path(path):
    return path and path.strip('/') or '/'
L{_formatExample} replaces I{%(FOO)s}-style variables with values from
dataset/ETHPy150Open edgewall/trac/tracopt/versioncontrol/svn/svn_fs.py/_normalize_path--crossover with--dataset/ETHPy150Open ClusterHQ/flocker/flocker/restapi/docs/test/test_publicapi.py/FormatExampleTests.test_substitution