rvm installer failure

gistfile1.txt

stargreen@lsip:~$ /usr/local/bin/rvm-installer --version 1.2.0 
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  703k  100  703k    0     0   250k      0  0:00:02  0:00:02 --:--:--  280k
Unrecognized option: --path

  Usage:

    ./scripts/install [options]

  options:

    --auto    : Automatically update shell profile files.

    --prefix  : Installation prefix directory.

    --help    : Display help/usage (this) message

    --version : display rvm package version