HDFS-16329. Fix log format for BlockManager (#3670)

Signed-off-by: Akira Ajisaka <aajisaka@apache.org>

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java

@@ -4541,7 +4541,7 @@ public class BlockManager implements BlockStatsMXBean {
     if (pendingReconstructionBlocksCount == 0 &&
         lowRedundancyBlocksCount == 0) {
       LOG.info("Node {} is dead and there are no low redundancy" +
-          " blocks or blocks pending reconstruction. Safe to decommission or",
+          " blocks or blocks pending reconstruction. Safe to decommission or" +
           " put in maintenance.", node);
       return true;
     }