Improve toString methods

Author: Nitsan Wakart

src/java/org/apache/cassandra/io/sstable/PartitionDescriptor.java

@@ -107,9 +107,9 @@ public void resetPartition()
     @Override
     public String toString()
     {
-        return "PartitionHeader{ key=" + decoratedKey +
+        return "PartitionDescriptor{ key=" + decoratedKey +
                ", position=" + position +
-               ", deletionTime=" + (deletionTime.isLive() ? "LIVE" : deletionTime.toString()) +
+               ", deletionTime=" + deletionTime +
                '}';
     }
 }

src/java/org/apache/cassandra/io/sstable/UnfilteredDescriptor.java

@@ -210,7 +210,7 @@ public Columns rowColumns()
     @Override
     public String toString()
     {
-        return "RowHeader{" +
+        return "UnfilteredDescriptor{" +
                "rowLivenessInfo=" + rowLivenessInfo +
                ", deletionTime=" + deletionTime +
                ", position=" + position +