Explicitly close files in the staticfiles tests.

        call_command('findstatic', filepath, all=False, verbosity=0, stdout=out)

        out.seek(0)

        lines = [l.strip() for l in out.readlines()]

        contents = codecs.open(

            smart_text(lines[1].strip()), "r", "utf-8").read()

        return contents

        with codecs.open(smart_text(lines[1].strip()), "r", "utf-8") as f:

            return f.read()

    def test_all_files(self):

        """