parser.add_option("--slapd-path", type="string", metavar="SLAPD-PATH",
help="Path to slapd for LDAP backend [e.g.:'/usr/local/libexec/slapd']. Required for Setup with LDAP-Backend. OpenLDAP Version >= 2.4.17 should be used.")
parser.add_option("--use-xattrs", type="choice", choices=["yes", "no", "auto"], help="Define if we should use the native fs capabilities or a tdb file for storing attributes likes ntacl, auto tries to make an inteligent guess based on the user rights and system capabilities", default="auto")
-parser.add_option("--use-s3fs", help="Use s3fs for the fileserver (default = no)")
+parser.add_option("--use-s3fs", action="store_true", help="Use s3fs for the fileserver (default = no)")
opts = parser.parse_args()[0]