HBASE-25439 Add BYTE unit in PrettyPrinter.Unit (addendum) (#2841)

Signed-off-by: stack <stack@apache.org>

hbase-client/src/main/java/org/apache/hadoop/hbase/client/TableDescriptorBuilder.java

@@ -251,6 +251,7 @@ public class TableDescriptorBuilder {
   public static PrettyPrinter.Unit getUnit(String key) {
     switch (key) {
       case MAX_FILESIZE:
+      case MEMSTORE_FLUSHSIZE:
         return PrettyPrinter.Unit.BYTE;
       default:
         return PrettyPrinter.Unit.NONE;

hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestTableDescriptorBuilder.java

@@ -348,11 +348,15 @@ public class TestTableDescriptorBuilder {
         "{TABLE_ATTRIBUTES => {DURABILITY => 'ASYNC_WAL'}}, {NAME => 'cf', BLOCKSIZE => '1000'}",
       htd.toStringCustomizedValues());
 
-    htd = TableDescriptorBuilder.newBuilder(htd).setMaxFileSize("10737942528").build();
+    htd = TableDescriptorBuilder.newBuilder(htd)
+      .setMaxFileSize("10737942528")
+      .setMemStoreFlushSize("256MB")
+      .build();
     assertEquals(
       "'testStringCustomizedValues', " +
         "{TABLE_ATTRIBUTES => {DURABILITY => 'ASYNC_WAL', "
-        + "MAX_FILESIZE => '10737942528 B (10GB 512KB)'}}, {NAME => 'cf', BLOCKSIZE => '1000'}",
+        + "MAX_FILESIZE => '10737942528 B (10GB 512KB)', "
+        + "MEMSTORE_FLUSHSIZE => '268435456 B (256MB)'}}, {NAME => 'cf', BLOCKSIZE => '1000'}",
       htd.toStringCustomizedValues());
   }