message: fix validate_eosio.system_abi
diff: {"name":"from", "type":"account_name"},
  {"name":"receiver", "type":"account_name"},
  {"name":"stake_net_quantity", "type":"asset"},
  - {"name":"stake_cpu_quantity", "type":"asset"},
  + {"name":"stake_cpu_quantity", "type":"asset"}
  ]
  },{
  "name": "undelegatebw",
  {"name":"from", "type":"account_name"},
  {"name":"receiver", "type":"account_name"},
  {"name":"unstake_net_quantity", "type":"asset"},
  - {"name":"unstake_cpu_quantity", "type":"asset"},
  + {"name":"unstake_cpu_quantity", "type":"asset"}
  ]
  },{
  "name": "refund",
  "name": "regproxy",
  "base": "",
  "fields": [
  - {"name":"proxy", "type":"account_name"}
  + {"name":"proxy", "type":"account_name"},
  {"name":"isproxy", "type":"bool"}
  ]
  },{
  {"name":"is_proxy", "type":"bool"},
  {"name":"deferred_trx_id", "type":"uint32"},
  {"name":"last_unstake_time", "type":"time"},
  - {"name":"unstaking", "type":"asset"},
  + {"name":"unstaking", "type":"asset"}
  ]
  },{
  "name": "claimrewards",
  