message: Infra: guards logging message for ledger verification
diff: @@ -630,6 +630,7 @@ class Network:
  f"Ledger files on node {node.local_node_id} do not match files on node {longest_ledger_node.local_node_id}: {ledger_files}, expected subset of {longest_ledger_files}, diff: {longest_ledger_files - ledger_files}"
  )
  + if longest_ledger_files:
  LOG.info(
  f"Verified {len(longest_ledger_files)} ledger files consistency on all {len(self.nodes)} stopped nodes"
  )
  