docs: public static void executeHelp(String[] args, PrintStream stream) throws Exception {
          String subCmd = (args.length > 0) ? args[0] : "";
          args = CoordinatorAdminUtils.copyArrayCutFirst(args);
          if(subCmd.equals("get")) {
              SubCommandGet.printHelp(stream);
          } else if(subCmd.equals("put")) {
              SubCommandPut.printHelp(stream);
          } else if(subCmd.equals("delete")) {
              SubCommandDelete.printHelp(stream);
          } else {
              args = CoordinatorAdminUtils.copyArrayAddFirst(args, subCmd);
              printHelp(stream);
          }
      }