fix off by one header download

Signed-off-by: stefan.pingel@consensys.net <stefan.pingel@consensys.net>

ethereum/eth/src/main/java/org/hyperledger/besu/ethereum/eth/sync/PosDownloadAndStoreSyncBodiesStep.java

@@ -53,7 +53,7 @@ public PosDownloadAndStoreSyncBodiesStep(
   public CompletableFuture<List<BlockHeader>> apply(final List<BlockHeader> blockHeaders) {
 
     LOG.atDebug()
-        .setMessage("Downloading {} block headers starting with {}")
+        .setMessage("Downloading {} block bodies starting with {}")
         .addArgument(blockHeaders.size())
         .addArgument(blockHeaders.getFirst().getNumber())
         .log();
@@ -76,7 +76,7 @@ public CompletableFuture<List<BlockHeader>> apply(final List<BlockHeader> blockH
               // store blocks in the database, no TX indexing.
               ethContext.getBlockchain().appendSyncBlocksForPoC(sbList);
               LOG.atDebug()
-                  .setMessage("Stored {} Sync blocks for up to block no {}")
+                  .setMessage("Stored {} sync blocks for up to block no {}")
                   .addArgument(sbList.size())
                   .addArgument(blockHeaders.getLast().getNumber())
                   .log();

ethereum/eth/src/main/java/org/hyperledger/besu/ethereum/eth/sync/possync/LoadHeadersStep.java

@@ -60,7 +60,7 @@ private CompletableFuture<List<BlockHeader>> loadHeaders(final SyncTargetNumberR
 
       List<BlockHeader> headers =
           Stream.iterate(startBlockNumber, n -> n + 1)
-              .limit(endBlockNumber - startBlockNumber)
+              .limit(endBlockNumber - startBlockNumber + 1)
               .map(blockchain::getBlockHeader)
               .flatMap(Optional::stream)
               .collect(Collectors.toList());