Convert sudo to su for installer

suconvert.py

parser.add_option('--no-sudo', dest='nosudo', default=False, action='store_true')

if cli_opts.nosudo:
    replacements = {
    'sudo: True' : 'su: True',
    'sudo: true' : 'su: True',
    'sudo: yes'  : 'su: True',
    'sudo: no'   : 'su: no',
    'sudo_user: awx'  : '',
    'sudo_user: postgres' : '',
    'sudo cp' : 'cp',
    '--sudo'  : '--su'
    }
    installer_root = os.getcwd()
    for dname, dirs, files in os.walk(installer_root):
        for fname in files:
            fpath = os.path.join(dname, fname)
            if fpath != (installer_root + 'configure'):
                with open(fpath) as f:
                    s = f.read()
                    for pattern, replacement in replacements.iteritems():
                        s = s.replace(pattern, replacement)
                        with open(fpath, "w") as f:
                            f.write(s)