Add missing release note for h5repack timing (#1572)

release_docs/HISTORY-1_13.txt

@@ -948,6 +948,14 @@ New Features
 
     Tools:
     ------
+    - h5repack added an optional verbose value for reporting R/W timing.
+
+      In addition to adding timing capture around the read/write calls in
+      h5repack, added help text to indicate how to show timing for read/write;
+           -v N, --verbose=N       Verbose mode, print object information.
+              N - is an integer greater than 1, 2 displays read/write timing
+      (ADB - 2021/11/08)
+
     - Added a new (unix ONLY) parallel meta tool 'h5dwalk', which utilizes the
       mpifileutils (https://hpc.github.io/mpifileutils) open source utility
       library to enable parallel execution of other HDF5 tools.