consistent tapepool name option in all cta-admin tp commands

cmdline/CtaAdminCmdParse.hpp

@@ -598,7 +598,7 @@ const std::map<cmd_key_t, cmd_val_t> cmdOptions = {
       { opt_tapepool_alias, opt_vo.optional(), opt_partialtapes.optional(), opt_encrypted.optional(),
         opt_supply.optional(), opt_comment.optional() }},
    {{ AdminCmd::CMD_TAPEPOOL,             AdminCmd::SUBCMD_RM    }, { opt_tapepool_alias }},
-   {{ AdminCmd::CMD_TAPEPOOL,             AdminCmd::SUBCMD_LS    }, { opt_tapepool.optional(), opt_vo.optional(), opt_encrypted.optional()}},
+   {{ AdminCmd::CMD_TAPEPOOL,             AdminCmd::SUBCMD_LS    }, { opt_tapepool_alias.optional(), opt_vo.optional(), opt_encrypted.optional()}},
    /*----------------------------------------------------------------------------------------------------*/
    {{ AdminCmd::CMD_DISKSYSTEM,           AdminCmd::SUBCMD_ADD   },
       { opt_disksystem, opt_file_regexp, opt_free_space_query_url, opt_refresh_interval, opt_targeted_free_space, opt_sleep_time,