message: rpc documentation improvements
diff: @@ -1469,9 +1469,9 @@ RPCHelpMan getblockchaininfo()
  {RPCResult::Type::NUM, "height", /*optional=*/true, "height of the first block which the rules are or will be enforced (only for \"buried\" type, or \"bip9\" type with \"active\" status)"},
  {RPCResult::Type::BOOL, "active", "true if the rules are enforced for the mempool and the next block"},
  - {RPCResult::Type::STR, "status", "bip9 status of specified block (one of \"defined\", \"started\", \"locked_in\", \"active\", \"failed\")"},
  + {RPCResult::Type::STR, "status", "status of deployment at specified block (one of \"defined\", \"started\", \"locked_in\", \"active\", \"failed\")"},
  {RPCResult::Type::NUM, "since", "height of the first block to which the status applies"},
  - {RPCResult::Type::STR, "status-next", "bip9 status of next block"},
  + {RPCResult::Type::STR, "status-next", "status of deployment at the next block"},
  {RPCResult::Type::STR, "signalling", "indicates blocks that signalled with a # and blocks that did not with a -"},
  {RPCResult::Type::STR, "hash", "requested block hash (or tip)"},
  {RPCResult::Type::NUM, "height", "requested block height (or tip)"},
  