message: [net processing] Tidy up Misbehaving()
  Make const things const.
  Replace conditional return with assert.
  Don't log the peer's IP address.
  Log the name Misbehaving directly instead of relying on __func__.
diff: @@ -1064,23 +1064,22 @@ unsigned int LimitOrphanTxSize(unsigned int nMaxOrphans)
  * Increment peer's misbehavior score. If the new value >= DISCOURAGEMENT_THRESHOLD, mark the node
  * to be discouraged, meaning the peer might be disconnected and added to the discouragement filter.
  */
  -void Misbehaving(NodeId pnode, int howmuch, const std::string& message) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
  +void Misbehaving(const NodeId pnode, const int howmuch, const std::string& message) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
  {
  - if (howmuch == 0)
  - return;
  + assert(howmuch > 0);
  - CNodeState *state = State(pnode);
  - if (state == nullptr)
  - return;
  + CNodeState* const state = State(pnode);
  + if (state == nullptr) return;
  state->nMisbehavior += howmuch;
  - std::string message_prefixed = message.empty() ? "" : (": " + message);
  + const std::string message_prefixed = message.empty() ? "" : (": " + message);
  if (state->nMisbehavior >= DISCOURAGEMENT_THRESHOLD && state->nMisbehavior - howmuch < DISCOURAGEMENT_THRESHOLD)
  {
  - LogPrint(BCLog::NET, "%s: %s peer=%d (%d -> %d) DISCOURAGE THRESHOLD EXCEEDED%s\n", __func__, state->name, pnode, state->nMisbehavior-howmuch, state->nMisbehavior, message_prefixed);
  + LogPrint(BCLog::NET, "Misbehaving: peer=%d (%d -> %d) DISCOURAGE THRESHOLD EXCEEDED%s\n", pnode, state->nMisbehavior - howmuch, state->nMisbehavior, message_prefixed);
  state->m_should_discourage = true;
  - } else
  - LogPrint(BCLog::NET, "%s: %s peer=%d (%d -> %d)%s\n", __func__, state->name, pnode, state->nMisbehavior-howmuch, state->nMisbehavior, message_prefixed);
  + } else {
  + LogPrint(BCLog::NET, "Misbehaving: peer=%d (%d -> %d)%s\n", pnode, state->nMisbehavior - howmuch, state->nMisbehavior, message_prefixed);
  + }
  }
  /**
  