code: public String getValue(String name) {
      for( Entry e : commandLineArgs )
        if( name.equals(e.name) ) return e.val;
      return System.getProperty("h2o.arg."+name);
    }
docs: Return the value of a binding (e.g. "value" for "-name=value") and the
  empty string "" for an option ("-name" or "-name="). A null value is
  returned if no binding or option is found.
  
  @param name string name of the option or binding