message: docs: release note wording
diff: @@ -7,8 +7,8 @@ A new wallet flag `avoid_reuse` has been added (default off). When enabled,
  a wallet will distinguish between used and unused addresses, and default to not
  use the former in coin selection.
  -(Note: rescanning the blockchain is required, to correctly mark previously
  -used destinations.)
  +Rescanning the blockchain is required, to correctly mark previously
  +used destinations.
  Together with "avoid partial spends" (present as of Bitcoin v0.17), this
  addresses a serious privacy issue where a malicious user can track spends by
  @@ -30,10 +30,12 @@ These include:
  - createwallet
  - getbalance
  +- getbalances
  - sendtoaddress
  -In addition, `sendtoaddress` has been changed to enable `-avoidpartialspends` when
  -`avoid_reuse` is enabled.
  +In addition, `sendtoaddress` has been changed to avoid partial spends when `avoid_reuse`
  +is enabled (if not already enabled via the `-avoidpartialspends` command line flag),
  +as it would otherwise risk using up the "wrong" UTXO for an address reuse case.
  The listunspent RPC has also been updated to now include a "reused" bool, for nodes
  with "avoid_reuse" enabled.
  