HBASE-27296 Some Cell's implementation of toString() such as IndividualBytesFieldCell prints out value and tags which is too verbose (#4695)

Signed-off-by: Nick Dimiduk <ndimiduk@apache.org>

Author: huaxiangsun

hbase-common/src/main/java/org/apache/hadoop/hbase/ByteBufferKeyValue.java

@@ -294,7 +294,7 @@ public void write(ByteBuffer buf, int offset) {
 
   @Override
   public String toString() {
-    return CellUtil.toString(this, true);
+    return CellUtil.toString(this, false);
   }
 
   @Override

hbase-common/src/main/java/org/apache/hadoop/hbase/IndividualBytesFieldCell.java

@@ -288,6 +288,6 @@ public void setTimestamp(byte[] ts) {
 
   @Override
   public String toString() {
-    return CellUtil.toString(this, true);
+    return CellUtil.toString(this, false);
   }
 }

hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/HFileReaderImpl.java

@@ -1510,7 +1510,7 @@ public Cell getCell() {
 
     @Override
     public String getKeyString() {
-      return CellUtil.toString(getKey(), true);
+      return CellUtil.toString(getKey(), false);
     }
 
     @Override