'Add a transform to Augeas.
This function will correctly add a transform to augeas
The existing augeas.add_transform in python doesn\'t seem to work for
Travis CI as it loads in libaugeas.so.0.10.0
:param str incl: filepath to include for transform'

def _add_httpd_transform(self, incl):

    last_include = self.aug.match('/augeas/load/Httpd/incl    [last()]')
    if last_include:
        self.aug.insert(last_include[0], 'incl', False)
        self.aug.set('/augeas/load/Httpd/incl[last()]', incl)
    else:
        self.aug.set('/augeas/load/Httpd/lens', 'Httpd.lns')
        self.aug.set('/augeas/load/Httpd/incl', incl)
    try:
        self.parser_paths[os.path.dirname(incl)].append(os.path.basename(incl))
    except KeyError:
        self.parser_paths[os.path.dirname(incl)] = [os.path.basename(incl)]
