message: rpc: Fix getblocktemplate CLI example
diff: @@ -352,7 +352,7 @@ static UniValue getblocktemplate(const JSONRPCRequest& request)
  "}\n"
  },
  RPCExamples{
  - HelpExampleCli("getblocktemplate", "{\"rules\": [\"segwit\"]}")
  + HelpExampleCli("getblocktemplate", "'{\"rules\": [\"segwit\"]}'")
  + HelpExampleRpc("getblocktemplate", "{\"rules\": [\"segwit\"]}")
  },
  }.Check(request);
  