Add response message when volume delete

When a request is send for deleting a volume it will not print any
success message if it deleted successfully.It will print only error
message if the volume deletion fails. This fix will print response
message if the volume deletion is success.

Change-Id: Icef2045107e1dcc3b7f2abfeb50b3f180ded1a27
Closes-Bug: #1475430

cinderclient/v1/shell.py

@@ -315,6 +315,7 @@ def do_delete(cs, args):
     for volume in args.volume:
         try:
             utils.find_volume(cs, volume).delete()
+            print("Request to delete volume %s has been accepted." % (volume))
         except Exception as e:
             failure_count += 1
             print("Delete for volume %s failed: %s" % (volume, e))

cinderclient/v2/shell.py

@@ -420,6 +420,7 @@ def do_delete(cs, args):
     for volume in args.volume:
         try:
             utils.find_volume(cs, volume).delete()
+            print("Request to delete volume %s has been accepted." % (volume))
         except Exception as e:
             failure_count += 1
             print("Delete for volume %s failed: %s" % (volume, e))