Remove redundant statement and refactor
Remove redundant statement and refactor

1. Remove redundant pass-statement in except-block.
2. Define "body = None" before if-block to get rid of body-statement both in
   except-block and else-case.
3. Acknowledge error occurred instead of silently squashing it.

Change-Id: I31e17827b40e7a15d88ecacf1fdb2abbbe2da5c0
Signed-off-by: Lin Yang <984c62e29c173058275d217ee55de7058aa509b9@intel.com>

scottdangelo/cinderclient-api-microversions,scottdangelo/cinderclient-api-microversions