in remove-apache-license-identifier.py [0:0]
def find_apache_references(proofdir=None):
paths = run(['git', 'grep', '-l', 'Apache', '.'], cwd=proofdir)
paths = [os.path.normpath(os.path.join(proofdir, path)) for path in paths]
paths = [path for path in paths if not os.path.islink(path)]
return sorted(paths)