With PrintHeapAtGC, we get the following output:
 Metaspace used 5699K, capacity 6368K, committed 6656K, reserved 1056768K
  class space used 708K, capacity 728K, committed 768K, reserved 1048576K

Having details on 'reserved' memory confuses users. Since memory reserved for the compressed class space in an internal implementation specific detail, there is no need to log that information here. So this CR will remove the 'reserved' memory details from the above output.